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 0x3940476f1a25ce9fff9610f7f6fac9306dfda79d20b667d455fe6afd06720d86. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd246441-e084-46a9-b648-4ad8c3f14933.json and https://artists.proofprofile.net/proofs/artist/dd246441-e084-46a9-b648-4ad8c3f14933.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x142d9dbe60f2ca77188d6003075ed387e6c97e61b53ad6330ec56f03462fe594. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/ARDBP1700123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd829792db1ce00bc45aaf9eb025837f01ac809f0c36fa6d27757697b1ae07e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ARDBP1700126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4b765f94456fd88222bff91dd082cb0d7f2d0d6f3e50ec775d77400a62440e. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/ARDBP1700128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe261b2f90eaefaf00a42182616a1c9cbc9fd5cf9a3650c351faa43448e562653. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/ARDBP1700129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e85b0df82dda912fde9dceba6e1e4c8cbc84368de9193b8b2e886e36a02ab3. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T05:21:06Z), 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/ARDBP1700142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16af16304bc8f8986528308a88308f524f496bbc8cb9288c7968a0390902a51d. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/ARDBP1700144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x806baa34a5693c548c953731b0ba9e532618f9b1c3aac78e0592009fe404d809. Chain 2 (Bitcoin): anchored in block 958487 (2026-07-18T03:43:59Z), 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/ARDBP1700145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf89d7a9885759479ad44975db857560e5527b10e9c07260f74bb8d86dfa617. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ARDBP1700147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7748a07834d1c07407afc79cd218e1724b149c45d18811dafccaafaf155bb80. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ARDBP1700148.
Afirmaciones de agradecimiento y alegría
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb215c436156cee251ac8d8eb41662cecf7178dd44faacb6eb23c561f0acec950. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T16:46:31Z), 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/ARDBP1880006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb1cf7b9ba295d234e546c095fe1b1c41c23dc911dce106f44e8fe24d5b4fc9. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/ARDBP1880011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f3a0c4951d3c27e24b06b404ed3f461690c21c275389e418520e3b61f1e6c8. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/ARDBP1880013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36d9542a39f46be9ba88adee60a65456dcbd35657d57633951081513afc2346. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ARDBP1880016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1615532f77929c4f46ceb9a2638079415ab986a68b007783aeeafcf8799a302d. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/ARDBP1880046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e4fad1a9cf2a831dff7193f803220a09c806e893bcd363495dcf9f85ed1559. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/ARDBP1880047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e7a6b8cccd7fdfde7d916905eb89601b9a8442745212df96d449b516ad07cd. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/ARDBP1880053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf512629e55ed15a540ee7c6f8c31dd1f1d8fe333cd32aecb3194a31bcb84823. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ARDBP1880059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b8fe479b328cc1d35f71904584a5ee0ad9a1e7541e5dc6cf3315333fff3843. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ARDBP1885981.
Me lo digo, Te lo digo, Se lo digo al mundo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6e52581a6b840cef35926582e9fec058fb5de76ae401f988f6f3cd513ed8d9. 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/ARDBP1886161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6bebaab18640e1c209cb59e1d128c293e5c2800cad2e66426256d9a6537b504. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/GBSMU7101388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1c635069911d630a9b9d7e077be3be0155f31487e9445e19634585bc1b85cb. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/GBSMU7101389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2adcadee62f8c33db3851d71831e7b54b3100c5416a8887165131def5d320ca4. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/GBSMU7101392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa61927694d916c795ba7c5cc0bef5671920af14a09c89491144d70f640a7ddc. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/GBSMU7101393.