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 0xb253179e8fdb6ee15e67abff861269ff4c76e8e60ba360cec9c62855d11138d7. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/51013bc2-5642-4f5c-ac16-362d00556c81.json and https://artists.proofprofile.net/proofs/artist/51013bc2-5642-4f5c-ac16-362d00556c81.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 0x4ac1e24a1c9b885eebf6587d36f9beace0106af6ecee3fd6c77256cdd7a8e4c4. 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/QZWDW2442394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c12938a94738fef6c75248e191a1cc628f0af8716bb7f4e9ae72357484ce805. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZWDW2442395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2496d3d521bd2c48fc13c4e1c820b3c50c93bfd0475aba7e079359d53c819387. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:53:53Z), 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/QZWDW2442397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c54658fc19f9bb9c2fa051bd812f795f6cc2c74fd13cee5f024756ab722d11. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZWDW2442391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2328870abf6e427ccad8ef4909e348c282cb44aae614f532a73af1abf87673cc. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZWDW2442393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac1e24a1c9b885eebf6587d36f9beace0106af6ecee3fd6c77256cdd7a8e4c4. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZWDW2442394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c12938a94738fef6c75248e191a1cc628f0af8716bb7f4e9ae72357484ce805. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZWDW2442395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2496d3d521bd2c48fc13c4e1c820b3c50c93bfd0475aba7e079359d53c819387. 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/QZWDW2442397.
Mil Botellas / Dios Mio Has Que Me Enamore
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98cba5bb0e01359278fcc45da3e79e915c12ee30321cdc805a6f6054907b2e66. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/QZN882529403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7d998b7adb8fd25ff3f7b23a623c7679d5b98184bd41607c3354c37afc1183. 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/QZN882580088.