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 0x401dc21d4b05b9f246c46cf96e872aa9a5f78231d42c1125935c5fa0ae983124. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/60299614-0688-491e-9fbf-bfbb5795d48d.json and https://artists.proofprofile.net/proofs/artist/60299614-0688-491e-9fbf-bfbb5795d48d.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 0x29031505bd4e510e712234f80fc16d1777d9a5a396c9142c354379d8d36f6069. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMFME2194267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x152665698ba84be20de093a5e132c6644ac374cd84f289c07c7885c5bb790882. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMFME2194268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c2953c6f6e7ae05ccb8749487d83f21b1eb4d91e707ef727e7771a4596d0ec. 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/QMFME2194270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39db4eb285b8071988c123f3300fbe7b0d1ea05e196bda27b32e38fdb567edae. 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/QMFME2194271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ca773eeafc71cdb070eaf2bfd5414c4a0a50b772a4745f5335d876102d764b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QMFME2194384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c21180db91264e68830b986c96b5a724669d9ca17056f39b0256f56e6c3a64a. 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/QMFME2194276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747b7ec1279ca4bff400e28f25468069475f00464046cd1b3cfb68e2d33a1343. 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/QMFME2194280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6be5d7b0d2eca46c1745c9e160b92c31036167a938dbf8d121d11d028f93a598. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QMFME2194281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd39134043628a8b71533d6c4841139293a33def4381186875f5155d3275f22a6. 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/QMFME2194282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ef7ec31065bc9162dfe471d32139fa9e67acc3dacf4b6d667d4a1aa7ffb9fc. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:21:26Z), 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/QMFME2194272.
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 0x2431d5b3fb7a52ab09140d539d4cf78681f9f83a3bb997ea294601acfa7fb7e7. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/QMFME2194273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d444573f208282d641e83d96e67257a9a398fffb09bdcd39390366aa84d9997. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QMFME2194275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8411fc529fa0422238dd89669180c0f84c336d54f690a1334b47ba962ed93d9. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QMFME2194277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe724943e4a262580dc056996eb6fc1f46d58b894ab742684a4bf9af5a0a46da4. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QMFME2194279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e8b673cc4b11ada90ca2b02d3f49c00612d446b3591364a643ab2b2c285ba3. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QMFME2194283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x138eebc36072391eb8da4182cc7684346e471e9bd7a20012358ce8245b05b958. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/QMFME2194284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb42046fdcb901dbe7f2f5edb63d3ea7fc0f143231ee3a08f0e395bbe8813ce7a. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/QMFME2194285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760f2571cd4be46054ee25cd1408196f4940301c102a4e1b8cca753132448ddd. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QMFME2194286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbebfe882ffc7f0baf1cfb7498d8e02977687c8490b8b147d3cd3819d6f3c08c0. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QMFME2194287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc486823cb8f42ef5064079a81fbd594cdc62b6f25b247f1fdeb7c2c12524e89. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMDA62224131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df6dc1772a65a3dccd92eb6b3b253bb95158ddcd22ace88e86e11f5ca2d7529. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMDA62224136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c657fbaddea7a280fe48016f4667040a83f86d71f6d510c603eb65c625a4fc1. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QMDA62224153.
Mix Gaitero: La Más Pura Intención / De Grata Recordación / Háblame de Maracaibo / La Gaita de Otrora / Con las Manos en el Pecho
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86304a1e8b1016e249fdf72daea313edc05b17f575f2be80074bbdb2d313f3e6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMDA62242790.