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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d8d1e1ef7e2c5e83cc9a150441d549acdeb56ef3a408d285d5f776d5ea796b. Chain 2 (Bitcoin): anchored in block 953754 (2026-06-15T06:45:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad9a8776-3251-4843-836d-fbb2760b0217.json and https://artists.proofprofile.net/proofs/artist/ad9a8776-3251-4843-836d-fbb2760b0217.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d43e9ced14269366ea325a01a2b1967939df6e6803a9990977a12a2547d592. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBKQU1946507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22bcbf50088345c2b362436b0058a9983140e5d1ea8fed5f8924fc2e35382f2. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/DEH741719909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x850e86ce29a1a5965afbd0d9b7dd2557c5c53f0202df06cb046198fc36c85554. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEH741719911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375e6c5001e162e8e4e63e37a8f9b77f31260d5d7c68c606188fdf4d884c45ea. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/UKACT2232022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99a7ebcf23ab9c3f87e6d2d78b6ffafc7991ba1a721c16b4c600399dedf2112. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/UKACT2232023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89af06d160aa1f4d6551f125dbdec4ed1659d9b7318c48a80ac03e6065f35fe1. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/UKACT2232024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48bceb1d1a0cabd2679febed1115411ccb1375776b32a7513ce7402bedc0d5f. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:01:56Z), 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/UKACT2232025.
Rawmoments Originals (Vinyl Only Back Catalogue)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108d4b7613555c767729ecbcc138c97fa19520f0fd83984204673f7cfb0ccff6. 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/GBQGW2500044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74f75c25b27ccb5aa5c01f0a5a6695b5c8031c77fba7eab32ad96c97b85fe14. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/UKU932381139.