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 0x7053e569081d605bba270984910a8786927961d8db9b7ddc3ca0ddc6d8036f78. 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/8e112063-9f4a-4a15-95c8-da0f1eaff48b.json and https://artists.proofprofile.net/proofs/artist/8e112063-9f4a-4a15-95c8-da0f1eaff48b.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 0xaa0c254e642742cc410c49774ae0be894f29f6d2327c695d9d0cfcc001146808. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:54:52Z), 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/USUM70729943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a36b2827998c4bcf925ce342f8e87acae937c256be85714bc127d5a89712efd. 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/USUM70902074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda04ba13a279b69559deaed1ac7ea2c6d1487d919949568cd0f5d5210df25189. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:56:39Z), 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/USUM70902076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7915e06fef869b8f65410212f67164eff5adb2dd9db6f4c1c3e2c1416151c8d9. 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/USUM70902077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643167f27598f524e538c1a4f2a2523765caa6df05bc5fb6803964d3bea92e6f. 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/USUM70902079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57186fa88761f34abedbe033aae455f247d7866f94b348d5166abb0eb42dc8c. Chain 2 (Bitcoin): anchored in block 958487 (2026-07-18T03:43:59Z), 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/MX1881700059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1a40df1bb9268b954484c09f79aac61a54db07b09e6a4e9485c8cb44506575. 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/MX1881700055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d339768981722e75b89b3ed47b64527fc57659ed04f644468c44c67033d647. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/MX1881700068.
Tributo A Valentín Elizalde De Tu Piel A Mi Piel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5020c194f919830f482e649ae21cbe397fbe20f86bc0c08d3b149eb776b0655. 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/USUM70729934.