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 0xe4381ff20c7f5feb4f5f00bae1033cd98f19d28746cc869e6e025befef3f09cb. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2fc6d3fb-803e-485b-82ba-51196da3077f.json and https://artists.proofprofile.net/proofs/artist/2fc6d3fb-803e-485b-82ba-51196da3077f.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 0x821f73daae870d763a474f6f1feaec24a02742c94e5043ac6121b67315372fc4. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZDQH2364362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d693e62b60aac20cde7a243d33f2f1e52b075108d764291459a9c91f063476. 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/QZTPX2328045.
Yo Te Invito a Bailar, Tu Cariñito (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1732e06f6bdb1d54ad9265ab99fe303ab1ad3aceec733e8bda32d564d273f11c. 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/QZW9M2355805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d2ceadf97ae3c18ded7a21a590c54348ac67b8b7eda5e99834785d04147b69. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZZ7P2485440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b4e7d5cdbc957a6f97d754ff9531ce9a2faa774f08c20594106609c417e07a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZZ7P2485443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e19fcf975da9da683a72f5622c0c4ecb3009fc49745f52178999df035bc21b7. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/QZTB92549891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69db8180e08c841344a1097738049f86490a0d855e76fe5af813191bba8e468. 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/QZTB92549892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328b068b8b745b64c179aa58af44e1a876d929d320a215d560adab28c6c8c4fb. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:17:47Z), 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/QZTB92549893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d6d27e570e70345c61a5e3406214b070107d1038b1cf39e56b0c61eb4cb6890. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZTB92549894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064b18d68f76216fe9988f9474079a0acc2ef69f890bba4e95c58d61085411bc. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZTB92549895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6cad14f4be2c88d71cdaddbad14bbfff4cb4cdf8c4b318bd174b9f81dcd898a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZWFP2502238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b4781db78b5c627caa462bb09dcfcae78577de7ab45b1f496536b4d693518c. 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/QZWFP2502249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f8e66d809bd08aa5507e71998baf0808434f2d1b471162a89338e825964c45. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZZ7N2523057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9d85e3c0acca17ae66ad26cdd886bff08fd99aa7be3adade5087b73dc574ee. 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/QT3EY2552348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7cee2a076632babea40b1ae96fad9e186e094e184f067926c7ef8408b6b9d8. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QT6E82589663.