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 0x268da7e86a986a1b09b529cf8d90cc5bc0ee33a26e8fc2c5b14405a2c3f232b6. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e7ced8ab-3532-4689-97ac-778ba335b0dd.json and https://artists.proofprofile.net/proofs/artist/e7ced8ab-3532-4689-97ac-778ba335b0dd.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 0xa18afb82e04d4059a0396b33985b932d3996a1d32667e07ae505ae3d17f78446. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBBLY0900494.
Thanks (with Jimmie Grier & His Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac5d88891d098d70d58c2870534a509ea2e054ff81ec18d518d04b0461477c97. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USSM10305988.
Moonstruck (with Jimmie Grier & His Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb748d7c97cc6508447dd5b021b87317c6caca3a28fe44d4cfd58e96c7df49d1. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/USSM11402298.
The Day You Came Along (with Jimmie Grier & His Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65310bda8f4b7523fa48aecc176a158caefe49e11868b6af009492954d1a7580. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/USSM11402299.
I Guess It Had to Be That Way (with Jimmie Grier & His Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5c955eccc0dd03589763b345c4f9bc702ca0e4f830ceabfdc428881b7c1239. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USSM11402300.
Black Moonlight (with Jimmie Grier & His Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3398fceb1d71ce6943417d42c3738a4e6c9ed9bb52443400f8c2ad312e6dbff. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/USSM11402301.
(She Walks Like You - She Talks Like You) She Reminds Me of You (with Jimmie Grier & His Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c921f19922923c12ea4f4f2726ba5e2e86e0e6ec05d0ad87569625be16f1fe. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USSM11402308.