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 0xf916b50c55c166b58951fdc8936cb6e6980f974b47a7da3880f8a048c0f8479c. 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/1f162365-241e-48d5-9ba6-4aab2eb1399c.json and https://artists.proofprofile.net/proofs/artist/1f162365-241e-48d5-9ba6-4aab2eb1399c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A Ras de Cielo (3 Metros Sobre el Cielo)
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 0x0215da149a5aac23b7245f8b58833a32b34ec4d59a7787769ac6f575dd030f92. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/ES7210916301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb190830ad1d7290c2c869c7a0b86a60813292d5a51b1c6e7508d026fc1660d47. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/ES7211016307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafbd4f68bc391fc9859fbc44afbbe5d1a50f159fe8bd67409a9261acd56c04d9. 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/ES7211016306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa303ef34a1c738d5ae71d49ded180c8b757e1f89cc23e63ac74f3772a479340e. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/ES7211016304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08fc5acc72be463428f12d65ded337c8521f3087c0a4874acf116bdc6d075cb5. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/ES7211016310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3abc85c2d50dce90e1e9a45f861e540aa84f09c16aba39cf2b4b54846adb9c27. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/ES7211116302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b6c8ef666f3290d65de8179f5b7d9caffcb45e28012d9666bcb03ef827e7c0. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/ES7211216401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe929e63deee3e1234ce2f11f6d8ad8246bd5829651fae2b40e42c23c9e37a364. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ES7211216203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d75191027225501f88481ca36903131eda9d3b4818d68fc52590f65d86ae63d. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ES7211216204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c882288718b4ebd930957adee1ca459bdbedf897383ba2bd8fee9cc67877f9. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/ES7211216205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7269b4befbf033a3b41616d9024cb2e6d5e47024c9b1845ffe22660f8b25da. 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/ES7211116301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ffce6312c60e5cc1e7da3006f76e9ce853eaa6ad1dc77b1f480ad724381d8e4. 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/ES7211216208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9272107f752f2b2b3449a3d5f8440c7d0ce9083a72ab1f9bf20504c26a3ac53e. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ES81G1900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74c3ca7755f83bec2632dd43c16b029b815a689e5e9bc1421005f749246d984. 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/ES81G1900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9272107f752f2b2b3449a3d5f8440c7d0ce9083a72ab1f9bf20504c26a3ac53e. 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/ES81G1900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d1b727269f9c707452da1e492c0e0d44919cade689d20e6909d1836712c8a9. 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/ES81G1900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x405d3b51b14da5cb872cd84d9c931e72ce167962f1ce71d42fbd50b153e971bd. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ES81G1900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f91ab4234ced810f2de430539362ce1caadcc92accd62a88cdb648a90a3e9e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES81G1900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaefc2aec8597ea3ab31288f82537d3118b009f2e7653369fe508563297886dea. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/ES81G1900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695e053d4761d3966219261dbd695534a3094d2871db8fcf968e74a97c800096. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ES71G2210298.
Jóvenes Eternamente (Iñigo Ristori Remix)