{
  "version": 1,
  "title": "FastBTC Bitcoin-side reserve and November 2025 shutdown inventory",
  "preparedDateUTC": "2026-08-27",
  "finding": "Four non-overlapping Bitcoin receipts from FastBTC's visible reserve branches delivered 25.66001145 BTC to one exchange deposit address during its November 2025 shutdown. Two receipts came directly from Bitcoin-side operating reserves and two came from the Rootstock reserve through D9 and the PowPeg.",
  "addressRoles": [
    {
      "role": "Terminal exchange deposit",
      "address": "bc1qccy9mn9h2ed6sjf7pvx7af6zc7zax0qaegadw5",
      "explorer": "https://mempool.space/address/bc1qccy9mn9h2ed6sjf7pvx7af6zc7zax0qaegadw5",
      "basis": "Exact recipient of all four FastBTC shutdown receipts and the three later Exchequer-derived receipts; Nahari called it an exchange wallet on Community Call #73."
    },
    {
      "role": "RBTC-to-BTC payout multisig",
      "address": "bc1qajsvfccw06h758pn3za8wcx7qjztarj53ejjp0rf5a34urmyp74s6psvg8",
      "explorer": "https://mempool.space/address/bc1qajsvfccw06h758pn3za8wcx7qjztarj53ejjp0rf5a34urmyp74s6psvg8",
      "script": "3-of-5 P2WSH",
      "basis": "On-chain operational reconstruction from the official FastBTC payout/replenisher architecture, the wallet's transaction form, replenishment history, and matched Rootstock-to-Bitcoin batches. The reviewed official repository does not publish this production address by name."
    },
    {
      "role": "BTC-to-RBTC replenisher reserve",
      "addressTreatment": "Derived multi-address family rather than one static address",
      "script": "2-of-3 P2WSH",
      "shutdownInputAddressCount": 126,
      "explorer": "https://mempool.space/tx/26022c0acbcdd03421697a04394ab0f8eab94a84120d7cde821a797f24875771",
      "basis": "The shutdown transaction exposes all 126 input addresses. Of those, 116 inputs totaling 4.55323350 BTC exactly match recorded FastBTC NewBitcoinTransferIncoming events; one additional historical-only same-family input totaling 0.00009741 BTC brings the historical-address union to 117 inputs totaling 4.55333091 BTC; and nine same-policy inputs totaling 3.59859558 BTC are event-unresolved. Together those three categories reconcile all 126 inputs and 8.15192649 BTC. The wallet role for the full common-policy sweep is therefore an operational reconstruction."
    },
    {
      "role": "Historical FastBTC Bitcoin staging/operator wallet",
      "address": "18e3Ykzf2z8Xbc1qiDmxq5jPz6wRCwq429",
      "explorer": "https://mempool.space/address/18e3Ykzf2z8Xbc1qiDmxq5jPz6wRCwq429",
      "basis": "Historical operational reconstruction. This address retained 0.45360411 BTC through the shutdown window and is not added to the 25.66001145-BTC shutdown receipt total."
    },
    {
      "role": "Rootstock peg-out staging address",
      "address": "1BVZ13Q7C66UUKsUUq3ReaauJsH9JXxQam",
      "explorer": "https://mempool.space/address/1BVZ13Q7C66UUKsUUq3ReaauJsH9JXxQam",
      "basis": "Bitcoin recipient of the two reviewed Rootstock PowPeg releases and direct source of the corresponding 4.12996923-BTC and 6.99996923-BTC terminal receipts."
    }
  ],
  "shutdownSweeps": [
    {
      "id": "fastbtc-replenisher-sweep",
      "block": 924598,
      "blockHash": "000000000000000000010037a58ae84af00d905dc2786da11468a360ece313c5",
      "utc": "2025-11-21T18:50:26Z",
      "tx": "26022c0acbcdd03421697a04394ab0f8eab94a84120d7cde821a797f24875771",
      "sourceRole": "BTC-to-RBTC replenisher reserve",
      "inputCount": 126,
      "inputScript": "2-of-3 P2WSH",
      "inputBTC": "8.15192649",
      "feeBTC": "0.00026418",
      "terminalOutputBTC": "8.15166231",
      "eventReconciliation": {
        "exactNewBitcoinTransferIncomingInputCount": 116,
        "exactNewBitcoinTransferIncomingBTC": "4.55323350",
        "historicalOnlySameFamilyInputCount": 1,
        "historicalOnlySameFamilyBTC": "0.00009741",
        "historicalAddressUnionInputCount": 117,
        "historicalAddressUnionBTC": "4.55333091",
        "samePolicyEventUnresolvedInputCount": 9,
        "samePolicyEventUnresolvedBTC": "3.59859558",
        "treatment": "All 126 inputs were spent together under the same 2-of-3 policy: 116 inputs and 4.55323350 BTC have strict event-by-event FastBTC matches, one historical-only same-family input contains 0.00009741 BTC, and nine same-policy event-unresolved inputs contain 3.59859558 BTC. Those categories sum to 126 inputs and 8.15192649 BTC."
      },
      "terminal": "bc1qccy9mn9h2ed6sjf7pvx7af6zc7zax0qaegadw5",
      "explorer": "https://mempool.space/tx/26022c0acbcdd03421697a04394ab0f8eab94a84120d7cde821a797f24875771"
    },
    {
      "id": "fastbtc-payout-wallet-sweep",
      "block": 925286,
      "blockHash": "0000000000000000000184a62176675182eb4b9fc8e05d7ec35e5f92a3371d83",
      "utc": "2025-11-26T15:39:05Z",
      "tx": "3d45e407bbd818aaa13cf6870cdb3bfbeb696d225b4133a63444cc6db57f84b9",
      "sourceRole": "RBTC-to-BTC payout multisig",
      "sourceAddress": "bc1qajsvfccw06h758pn3za8wcx7qjztarj53ejjp0rf5a34urmyp74s6psvg8",
      "inputCount": 3,
      "inputScript": "3-of-5 P2WSH",
      "inputBTC": "6.37841992",
      "feeBTC": "0.00000924",
      "terminalOutputBTC": "6.37841068",
      "terminal": "bc1qccy9mn9h2ed6sjf7pvx7af6zc7zax0qaegadw5",
      "explorer": "https://mempool.space/tx/3d45e407bbd818aaa13cf6870cdb3bfbeb696d225b4133a63444cc6db57f84b9"
    }
  ],
  "rootstockBranchTerminalReceipts": [
    {
      "utc": "2025-11-23T10:02:04Z",
      "tx": "0d7c9836b52c4a756ef9c34cdaab22c24e9bf8ebf8756faf63deb3c5719098e8",
      "from": "1BVZ13Q7C66UUKsUUq3ReaauJsH9JXxQam",
      "to": "bc1qccy9mn9h2ed6sjf7pvx7af6zc7zax0qaegadw5",
      "amountBTC": "4.12996923",
      "explorer": "https://mempool.space/tx/0d7c9836b52c4a756ef9c34cdaab22c24e9bf8ebf8756faf63deb3c5719098e8"
    },
    {
      "utc": "2025-11-27T22:30:34Z",
      "tx": "8ee46e3c42a1d79e1abd932e56345a5137a25756c062134ae567d82f9f2f6703",
      "from": "1BVZ13Q7C66UUKsUUq3ReaauJsH9JXxQam",
      "to": "bc1qccy9mn9h2ed6sjf7pvx7af6zc7zax0qaegadw5",
      "amountBTC": "6.99996923",
      "explorer": "https://mempool.space/tx/8ee46e3c42a1d79e1abd932e56345a5137a25756c062134ae567d82f9f2f6703"
    }
  ],
  "totals": {
    "bitcoinSideSweepInputsBTC": "14.53034641",
    "bitcoinSideSweepFeesBTC": "0.00027342",
    "bitcoinSideTerminalReceiptsBTC": "14.53007299",
    "rootstockBranchTerminalReceiptsBTC": "11.12993846",
    "combinedShutdownTerminalReceiptsBTC": "25.66001145",
    "historicalStagingRetainedBTC": "0.45360411",
    "terminalUtxoBalanceAt2025November30BTC": "21.53004222",
    "laterExchequerTerminalReceiptsBTC": "23.13948498",
    "observedFastBtcAndLaterExchequerReceiptsBTC": "48.79949643"
  },
  "valuation": {
    "method": "Value each net terminal receipt at the Coinbase BTC-USD one-minute candle close containing its Bitcoin confirmation time; sum the four results once.",
    "estimatedUSDExact": "2244090.25349372640000000000",
    "estimatedUSDRounded": "2244090.25",
    "sourceIds": [
      "coinbase-btc-fastbtc-terminal-nov21",
      "coinbase-btc-fastbtc-terminal-nov23",
      "coinbase-btc-fastbtc-terminal-nov26-payout",
      "coinbase-btc-fastbtc-terminal-nov27"
    ]
  },
  "stakerCapitalContext": {
    "sip0012AuthorizedBTC": "100",
    "sovBackedLoanProceedsSuppliedToFastBtcRBTC": "34.5001",
    "finding": "SIP-0012 authorized 100 BTC from the Origin treasury for FastBTC, and the transaction record separately establishes 34.5001 RBTC of FastBTC liquidity financed by loans against Exchequer and Exchequer-routed SOV. FastBTC recycled reserves through user exchanges, so these historical capital sources establish SOV stakers' financial interest rather than continuous satoshi-level identity at shutdown."
  },
  "attributionAndLimits": [
    "The two Bitcoin-side wallet roles are on-chain operational conclusions, not official mainnet address labels. The pinned official repository documents the payout-multisig and replenisher-multisig architecture but does not name the production addresses.",
    "Within the 126-input replenisher-family sweep, 116 inputs totaling 4.55323350 BTC strictly match FastBTC incoming-transfer events; one historical-only same-family input totaling 0.00009741 BTC brings the historical-address union to 117 inputs and 4.55333091 BTC; and nine same-policy event-unresolved inputs total 3.59859558 BTC. Those categories reconcile all 126 inputs and 8.15192649 BTC, while classification of the full output remains an operating-family conclusion rather than an event-by-event attribution.",
    "The four exact terminal receipts, their dates, transaction IDs, amounts, and shared recipient are public-chain facts. Describing the 25.66001145 BTC as likely FastBTC shutdown inventory is the dossier's conclusion from operating-wallet provenance and timing.",
    "FastBTC reserves circulated through user exchanges. The public record therefore establishes substantial staker financing and the visible shutdown destination, but a closing ledger is required to allocate treasury capital, user deposits, accumulated fees, and any substantiated outside-provider capital.",
    "No reviewed public record maps the Bitcoin signing keys to Yago, Nahari, or another natural person. Exchange KYC, wallet-custody, signer-instruction, and internal accounting records are required for beneficial-owner and instruction attribution.",
    "The 25.66001145-BTC shutdown total already includes the 11.12993846-BTC Rootstock branch. Historical deposits, sweep inputs, fees, terminal balances, and the later Exchequer receipts are disclosed conservation or context figures, not additional FastBTC shutdown addends."
  ],
  "sourceIds": [
    "sip-0012-fastbtc",
    "sip-0012-forum",
    "sip-0015",
    "fastbtc-bidirectional-direction",
    "fastbtc-bitcoin-shutdown-sweeps",
    "fastbtc-november-2025-route",
    "fastbtc-sunset-announcement",
    "call-73"
  ]
}