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 0x522967efbdf2df9c8ad31f54b3554ae9e1370862e978ab35ca183c4eac49bde4. 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/dd6b6b01-36a4-4bfb-936c-722a4d786d49.json and https://artists.proofprofile.net/proofs/artist/dd6b6b01-36a4-4bfb-936c-722a4d786d49.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
CHAMOTA QUIERO TENERLA (Amenazandel Remix)
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 0xd03080b43209170f291c97081ff09e1a8a3511dead1681aa9df7a6129adde124. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZZ7S2592073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5ab7e8957bada4c3ae9e2b2458068b96c427db1731883e11ebe40c8e5f50c3. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZZ7T2520195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53bdd0b183260ca33662d07a4bf50511b710bb37858b95efb9453cbe94867132. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:48:56Z), 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/QZZ7S2554334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4fddf6b94103fa6a4cf79f18fb1574d160b0adffad368c3eb7fc0417413163d. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZZ7U2578960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcba40035287307fe236afb1bc4433adb8a356b00ba154e173c586334d5c8884. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:32:41Z), 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/QT3F42585012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca81cd9cd41fa1776e9adae9a909d358dc5c432d07f24bdc7d84892741c37d27. 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/QZWFP2406017.