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 0x6f115e94db94eb428e1b62d76ddd6224b838f26d7efe14d90b21c645409603fd. 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/004e10f8-a7cb-4ff1-b5ce-d4fdabfe564b.json and https://artists.proofprofile.net/proofs/artist/004e10f8-a7cb-4ff1-b5ce-d4fdabfe564b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sé Pero No Quiero Saber, Entonces No Sé.
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 0x0b64e3ad479c4bb12ef47939b3a9acf05e544d83519abf576cefead194774569. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ZZOPM2120475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x248cf19488dba79d246b96bfaee4e9e4930865b5d4255a054475feccfedd6680. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ZZOPM2120476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e467b841108440a2090b53ff33b7230e0d79191ebe7730d471dfbb9ef3a64e. 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/US3DF2204869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618a43055012f81272ab2187c505bbcc9c9bd58df05fc0ec847855026164f73b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US3DF2213214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6edc7115416a0662ac4d4d229b65502abbc645b525137b1a8f9f522bb58334cd. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/US3DF2226827.
Inolvidables Vol.1: Boleros de Colección
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03d037983cd7d76849f1bf04b4ee94dcd2149ddea0d52886f1c907dd0dbfdd0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US3DF2261359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bcc0872cb9023bd0bc6fafb45a8bf820906dcc2d924683faaa24369ef0b8e90. 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/ZZOPM2238112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58163cd43cfa819580555a51d6518bc40b3d49ab0b34560c1ec09bcf2c3d3321. 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/USANG2217932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce84e8f6f1f1b52b8677bf2cf74f86c0a8d20831863375f9ba4b2ef10176ea7. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/BK4DA2210783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193bd2d8497a8fa90d3760ed7a10bb1be51e00555711d8922a40aca1d2368aa8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BK4DA2300904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ccbab34b2a0d5967bdb701a511f4e7663a23445ac9012e8c1e010fb0198ea42. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USANG2283731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02309028f2cbb64c9b9e9ef7b58de0ce1e2a078d26a42f77db522a1c68b90dbd. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMANG2204014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3edd2c1c153af8580708a69d70786daa00aba3c691f644781723f260c42ef294. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BK4DA2402128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa355a19eb2d1d232e2adf67bdbda757244d38da17a15d2d8d28e7eeee48e887c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTRX2495670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c15943837e3d45e01cf5d0eaa88bf96bf20516abc5efee53e0214b345daca47. 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/US3DF2514878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x145db9fa08ef5d3fd881998cd7bce79dce657f5b26be8a55cdcda83815c2e6d8. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:18:22Z), 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/US3DF2514879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c8c0a6bf675c57306da38359d86c68e0d1c8875c93586de62604b5ee021078. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USANG2255457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35335de989f6ce46aa2465e0ef21f5a1cf52a5fc15f0124daa216335a6d4b839. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US3DF2238122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1f05d528a19b6d30a5bff6a026b5b8f53abda3160886337561f4b98cc0d9ef. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USANG2217801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd53b4846114f578b27634a5e84a5bb2f7ac1ac5369e7ec5513b98006d6907c48. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/UKZGC2407685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541fe3b03676001a7b377ae4e2de6ae1408d8a062c55a6aa8c36a3ed1c64f0f7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZ5FN2522534.