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 0xc159d93ec33652be914e1e99d4089114ed6baa63bb16fe5d537ffbbf0b4699e6. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/de549ab1-b9ea-488e-8673-ef302b4dcd33.json and https://artists.proofprofile.net/proofs/artist/de549ab1-b9ea-488e-8673-ef302b4dcd33.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 0xa98719b37fc1ef13d26a29ee822f564ef9a0f9d111d89a3993a3e7706135217d. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:33:55Z), 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/GBKPL1801742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad26ba03281d384bdf2fb5b90a847afad6840d7e1c74cc134498bbe852fa05d. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/GBKPL1821650.
Es Así (Lose My Mind) [feat. Carolina Cano]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e79ad345d22727370fea84d010f2bbd682b08b827dfcafa939e380a0d6047fe. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:44:19Z), 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/QZDA52579575.
Don't Forget About Me (Supernova Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c80197be840845a13822b1d645f79ce13c9329ebc85b5de8bc7d8058ec21a0. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QMBZ92576337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c45396d3405c0a40b75ea5a7505c9f55d1ed44c66beca565ca51400a0e5fba. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZZ7M2536166.