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 0x4f48c939408057459184ca8093a51d4da15a7d9a37ec360abaed0c487c786d21. Chain 2 (Bitcoin): anchored in block 953773 (2026-06-15T10:40:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c45dfbcc-4054-4398-9b3a-b352bc16d326.json and https://artists.proofprofile.net/proofs/artist/c45dfbcc-4054-4398-9b3a-b352bc16d326.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Right Now (feat. BillyLo & Jovian Demarr)
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 0x54ab126a18333569fa2b0be4a6025fa30a4f9406422c32ca01de7dc37eafa92b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZTBD2341964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f76fff705a4a14b829f5c42bd7b950e89bc6c0819555b6b2d7cf94bb58fdfc9. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:57:05Z), 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/QZTBD2341965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b8e4cff59940c2dd4c10cfce7ca37c6813e47cc32a6fe5808bf632f15130c1. 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/QZFZ72492917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd63e089dfab79ea1147e5f22bf0186722abee9dd2d321908fc0579851ed65888. 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/QZRP52421387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948c7ef749a2df10c06051d868be73acebdc12f8c72ad64a3a21e2ecc5dad00b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZRP52421388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6acdf5f69395a024e66dc02f06d73699a36c8b9a8e4b0ba9d886cb663fcb1268. 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/QZRP52421391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2740b91c9f6b23e0b08471b86b51d4b1944a14f79c22df7c24a5270473fba4e5. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZHNA2523555.