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 0x0d6bdf6a48ce9afb74c7c819810f07d4f5c7c76d09f33c27daf6774f17795672. 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/c4d81194-6b4d-47c5-b307-1e74c71a3154.json and https://artists.proofprofile.net/proofs/artist/c4d81194-6b4d-47c5-b307-1e74c71a3154.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa95626943f5407f6e3f66e40e087e8c0f11233933db22bd13b892e92351a39fd. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T02:01:32Z), 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/USARL2000401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a419aed1c7bc998b54fdf9aaf7c54139c26770bf8f27dae0e3c4e3f6f77516. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/USARL2000402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56fcdbe1f9c08a5da6a188c7ac634fc9bbb263fc64b3dd95ca19e7c5faabeef6. 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/USARL2000403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1008bdca1eab2eb3b2037c2dd8ecb3aae886e8d887c8cf1e555f6fabadfb7f5. 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/USARL2000404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2aa47fb9e517f3a54642fa7bfdd10492b07435db13ef960cc5dbc903cc8c71b. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/USARL2000405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b61baa50ac2b3609df073d2530e18109767169a34f810016a641a5d07326d3. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/USARL2000409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84722a41fcf928edb315361dd90e3025f0b9cb73f3eafd95150b93227d6f51bd. 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/USARL2000411.
Alligator Records 50 Years Of Genuine Houserockin' Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba82e5a318cb48afbea25a0f90159d372896e3b634cc0cdeb30fc69c9fa71e7. 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/USARL2100048.