1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x2843c555faeb08f500860ee4aad0dc8cc72091d1db8daee0f4648b5de9c33391. Chain 2 (Bitcoin): anchored in block 954035 (2026-06-17T02:39:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3d2773e8-0512-4343-8948-4dcbef1257e1.json and https://artists.proofprofile.net/proofs/artist/3d2773e8-0512-4343-8948-4dcbef1257e1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Have Yourself A Merry Little Christmas (SINGLE)
Don't Take the Night Away - 7 Inch Instrumental
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 → block OTSBitcoinBlock must exist at that height 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 0x69f45d23b84129d472d1ebd0b30ea3e536bda7a8a81ece4874812aa2494e724e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCAAX1198895.
The Lion Sleeps Tonight (Wimoweh) [feat. Paul Bergerot]
A Holly, Jolly Medley (Holly Jolly Christmas, Rockin' around the Christmas Tree, Winter Wonderland)
A Kiss for Every Light on the Christmas Tree
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d04994846c2b01c1a2ef3de449b1d065fdc1fd23e883d7756f0ac347ccedab8. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/GBAZB1151308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3ffdd6aa410a2e87580962694ae23f02fe4a35d769e2b01382d6e9ea66db89. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBAZB1151325.