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 0x5146ad82373c6134d485f5718b0ef7d50487365312b6d874556ebffc4cd78aeb. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9b9423b-1c9b-4b73-9b40-7da45db9bfc6.json and https://artists.proofprofile.net/proofs/artist/f9b9423b-1c9b-4b73-9b40-7da45db9bfc6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Old Priest makes Maria burn her book
Legend of the Bluebonnets (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 0x75573d5c69101bd70edb9c1324fe34ba979c7a32a0a337409abae324dab84cb9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USHM20586923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d574fc1d2cd4588bb6d717a77c704fc819deabb4567abf109ca1ffb0f63beaa. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USHM20586924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723cd12cb26d892d357348e3b5933fa87d3c3aeffa45d38bfd7e1a0e59fbb496. 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/USHM20586925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19e31d70a4d2ad7ca1dd0edf6b6c3b5fb91ed7d9eda818d6070f3dab2858af0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USHM20586927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27bda66b60837ae0144797bba935075bb98f08942f56eeea7fb6e35bc7664de. 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/USHM20586948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563b3a925558eeb7012a7d2db1a37769269e85e31e7603845b2b83a021bcad46. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USHM20586951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4130c05a878350a8e5cb2ab0447685874a3f47a4d352badbda5b31e22600441. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USHM20586954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8cc91321f7921c1cad9fef5b2e1283b024cf4af87a61a4cc2bb83a5ad040b3c. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USHM20586956.