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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0f9b13a388b11ac5ba59aefadb941f6299d945670765e4db9443e69961ecfb. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3369da29-7b90-4af4-a596-2d3b72233d79.json and https://artists.proofprofile.net/proofs/artist/3369da29-7b90-4af4-a596-2d3b72233d79.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6102d2f0f7eba47589065a789da28ca2c7f677a6f2f445fa2fe0b7c3be5dc2f5. 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/USLZJ2002775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ad0dc3c07c5b7636632fb0904d1ddb9535b079079eccde1d2228307e5b74f6. 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/USHM92267149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033751e5755fca4ec7ad4a8dc8179065cccbaf4a3883b006e9ccc2b4f6bb77fb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USHM21325149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca512444ff62c8bee45ca10677422a90e988c088f84b61a62eb936f79141c3c4. 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/QZNJV2479006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7ed0ac4b3959d0db52e88272216cc26ad520f856ee0efd11e162b66c7214f3. 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/USHM22439271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d0d94cd337c25564f6b217cfad65b64c22c8ef1d31f401de1c1c76cdf9f409e. 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/USCGJ2467348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf8ee346562d45b8c0c9c271dbfd40f338064d2c229b7957b943920e03ecc5ae. 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/QMFMF2317558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916e72b4e047780374cb93f6688810501c168dbc1695a08ae3fbbd7fb215210a. 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/USDY42289350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d17ae85fc5032946e28d6533e1af5621432a3797ba0cf753fe1bbfef356c88. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USCGH2231156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd13cd061049a618e570d5f5eba0f1b7b31e6a353fbe8e64b25c44856f416d1. 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/GBWUL2185610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ed94b8489e9373096aedf7e0d9d74a2438d8579eb48762a02909bad090e8cb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCAFJ2156802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb8ee6a3003a8e9c33d0c30e87dfa6ff24a1a341454dc4c6723d51a0f1670e2. 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/QZ5FN2071248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe8d714cfba196174d12b0c9a8d9494478ea167318f6cb20c09274c5a6e45b4. 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/USL4Q1912842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f4b147abac71b32133038c3d36f0ce9e458da8b364d784a2db743d44facc09c. 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/QM6P41966518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9708c6be06a39e7a25a55041f7d63350a429c66dd2535a0f4640f0c7e0cc33. 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/USHM91827849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ba567e370b8c0fcf738d83b3bd087439831212dfbbd84381bcb6a24bd2cb60. 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/USHM81766938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad794fa09213a67c141ebe80da2ca502f48437f407272af39177dfa16751c6a. 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/USHM81605887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816f19dde0aeae3e0627594b21b835ba6d271d770a76a74a91ceb4b99f46c092. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USCGH1655698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb6ed903ed1d9a4c4bade48b864e0e66438f47f0f4b490a2ebdcf7d91cd2038. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USDY41501146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ed94b8489e9373096aedf7e0d9d74a2438d8579eb48762a02909bad090e8cb. 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/TCAFJ2156802.
Vayase De Ahí [with Juanka, Ceky Viciny, Pacho El Antifeka, La Insuperable, Haraca Kiko, Musicologo The Libro & Pablo Chill-E] - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14a01239a93b0ab397c1ab09c96e5cb84003ed8e0d5a1d7661f2bfd38d9e742. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITF252000244.