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 0x40a246bd7efbe63c92bdf83d4bfebc51ec83e5afcd6f4cff466cd81bf5df7038. 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/6d51f0c3-cd93-4285-8ec0-8a6cb914c844.json and https://artists.proofprofile.net/proofs/artist/6d51f0c3-cd93-4285-8ec0-8a6cb914c844.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 0x9229f68be0a1a80a0c2a2bcccdbd6cde67a782dbe78758c7618407488e856ee5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZGLS2221354.
Ama, Vive y Sueña (Guayaquil) [feat. Yilda Banchon & Pamela Cortés]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23db0da987c35c0d5ece74e9361b8c969f743df889d0ffcc43f600b84f1ba4a8. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:18:13Z), 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/USHM92262743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb832c71e6833e2936c813219cefc8990246778f2d5653fa7ee2a7a236191b1a. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T19:12:12Z), 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/USHM92262746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5f54a98d8a3d6cfa9c982261bc470cbb6d863fb9d70ad3f4f20fb2d45624f4. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USHM92262748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b287a8a40fea09b1ff0a8f4a098f3bd72923107c47d546383b1b81758f166c. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/QM4TW2404566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0cd6ccd21c853031fbe4e1235922592076f277b3762381e788f8e331cf6f094. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QMDA72473746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda79e8437bdd4f181619dce6afad68f027bcda32412e667321ed14abb54cb6d. 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/QMBZ92517951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x351c168662ee52e093e02547d9922c6aad153684c56793efcd287edee9a975bf. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/QMFME2583750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa61ff30dfb0d439864519c4a844daedf5a6f5ce99e8e042b657d6a55059550. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:36:17Z), 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/QMFME2583877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc9ce8a9c4b596417044e9c2a6a1a11a2a0de195ac4b221656c3858f51a12d8. 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/QMFME2583761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6157b0f8c6719311a79c3418aa2c576204143e11efbfcea4875f52457cb4955. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:24:07Z), 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/QMFME2583769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f5298539e805fd0303c8d1ce6d35759607274f85afb4b0b531dd26e1654787. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T15:01:35Z), 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/QMFME2583773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e5f7c312607d7d0f473f3ef34d6b97498a58de2b4be1558fd0bc3d0b027227b. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:32:22Z), 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/QMFME2583781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3113bf3b3d0d7d696d5d69b1eeac5880e75580268f5b6bcd59c521c40505fb4d. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QMFME2583798.