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 0xc8276a73f8e323aad216ca5c16f00e3bf500a716c8444c00e2d9f63d8f97189a. 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/1004f2c3-a84c-4498-878f-d9b746a9ce3d.json and https://artists.proofprofile.net/proofs/artist/1004f2c3-a84c-4498-878f-d9b746a9ce3d.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 0x8e69b49152ff4962cc6af913a0eaebccc25953170882cc6b61efa2e145cb457b. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USASN1402022.
Ondea Tu Bandera En El Aire Por Venezuela
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x919e644b2afaadb049c2d77c41f589b53d62115ceddff8e31d92689c7264394a. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/USHM92012283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d317b43e2e167061b0b2f88348c5c777b406f029fae61d8609c9f54b800387c. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USHM92012284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f42a88cbf813ba1f53bf4b7e773e9e0f1c6f4496bf227a940c79ff9c8d520e4. 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/USHM92012286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82adc3c9d307ccb02f58db6eec130f28b10235a96d3041b6e0d5eea474571d1a. 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/QZN882433478.
Pistas Originales Sin Voz (Éxitos Vol. 1)
Pistas Originales Sin Voz (Éxitos Vol. 2)
Pistas Originales Sin Voz (Éxitos Vol. 3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615edab5fb0ef41534cb914af7828628f60f7b4224daa0f434f9752936440423. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZWDW2544844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443cebd74331a2ee06052fa67f8285a691f888f02ccd04c12fb235bf22b6c519. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/QZWDW2554431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d33881623148476bafc9e3875be0369ba57e6f31673a7f515b275f85689e10. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USASN2001185.