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 0xf97ef2f7c977625e3fcf56c4743dc68d8cb3c29f9faaf1b4e7ead33aaa1fe219. 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/6a319f9c-b18a-43de-bdf8-2c0f132a80db.json and https://artists.proofprofile.net/proofs/artist/6a319f9c-b18a-43de-bdf8-2c0f132a80db.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 0x69c4e35f5a01f9e2e17176da2e36ff3803cdff76098338b4b94dfaef9674d07f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CLDS21300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa397b034f780adc211729dd8e77f33d7c516693af7fff391aa5d739f905722e. 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/CLDS21300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d210ef4454e79876f0f82cebb5fb1e60fd9178555b6e9cf5e42ba24c988dd9. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:37:54Z), 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/CLDS21300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d062dbdf227d3b8ee2905bfcc33bb86bd071927055ca79eafe6e8340753538f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ES71G1841116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x875b50b8df7eb841e619ec99deb41c8b6f9fac42f00bfd87e3fce480e4483fb4. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/ES71G1841126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b7afc40c0e7b755d4e2c1f7c98739fcd4f1eac23fbbbf8e84d61ddeb9f8a70. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ES71G1841099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4efe19468a587dc17ba943164869ad07c8814ac530b69eb74af72bdc70b88c. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/ES71G1841120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb41359e73ee7415acdbddf31b27a4780688413b5a9affe6e319abbc6928dcd. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/ES71G1841121.
Documental Gira Pueblos Soundtrack, Vol. 1 (En Vivo)
Documental Gira Pueblos Soundtrack (Vol. 1) [En Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e27f3cf435668f4e656331ba28996f85961afe706c012051f1731c964b5e1f4. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:54:46Z), 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/ES71G1917047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4611ece0abf8e808228ef6a366bf5945cf85ae21b244c737ff91c5854337a02. 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/USL4R2248834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984a05c928bb9ed01f9c22daa7c96ff5c5a484bf77f8d88cfca095835d0e76e3. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/USHM22394993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a0f65cf4be0048c407c33e9fe9746034045c3fe8ec5a2dacedf288a59fbb99c. 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/QZYD92401561.