{"copyright_id":"0x54ff1747b8fcf8ef2ff5e2406549e3c4a86f2d9a6f4f06cefc9ccbd5b33af9ba","name":"Covers by David fils de Momone","registered_at":"2026-06-15T05:55:34Z","symbol":"NIM0702901","token_address":"0xcccd77f0fbc50ff8539c93bd195f4a6d9debe022","type":"artist","uuid":"f2056684-f8a7-4d91-b87d-0ffb5ebd2d46"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ff1747b8fcf8ef2ff5e2406549e3c4a86f2d9a6f4f06cefc9ccbd5b33af9ba. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f2056684-f8a7-4d91-b87d-0ffb5ebd2d46.json and https://artists.proofprofile.net/proofs/artist/f2056684-f8a7-4d91-b87d-0ffb5ebd2d46.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe11e283fbbdb30a884f97e80849b8e9d08b2b354396c26c89636958c9af4c097. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6H2132001.
Yi Jian Mei (xue hua piao piao bei feng xiao xiao)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e7367617389779e00d5de018f7e231c1ea86405261329732236f7b86f4d777. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRDVN2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3231970ed9f464614d8473406b9ca8f397a79d0ba2cb5ff91b772b88c3b519d5. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX872411681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62907bb6c8d0c73ac47feaa311244d38a75831cbe1434398fa2466e8f7efb30b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX872411685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988f65c8e57a4c9df82f0b402306b6c0e02166543fec31e9756f85826f9ee25a. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX872411721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29fafa32e2e75b709d8603e802e5246ea26808b410488963c14ae14223800427. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX872411683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cda0e4fedd8b8ce5e17adc5551a0c28b18002dae534d5d4fac8221416b039ea. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX872411684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ea7906354301dbddf1e37089c203e0611ae7eec987662d55e082d6dcaf8d0b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX282565077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e06f5325a0479c0841448b4e6d1d5345cf1c4d3f58a568d8162eecc5223efb6. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX282567937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ea5ecf28aef5ca4da17f7957105413abef8da64f8c8f43b0ebec6717fe1f7b. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX762510780.