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 0xaf3d5539e9af940006342fff6ccecb5126c2de0fb55ebdf75318a107c124ea01. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c3c74420-eb2a-456c-b29e-810806ce788b.json and https://artists.proofprofile.net/proofs/artist/c3c74420-eb2a-456c-b29e-810806ce788b.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 0x2c27ba49baaf7e55346aa7302f837f486844835ad9df9e72572f59a44cd28b3e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GXBDS2329520.
William George Bonin / Randy Stephen Kraft
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dff576884938fbe8b7972dd13a49c3033db55cf6812dcf18b773ae58d7ea4ca. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/GXBDS2356986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3243a166e689ded3063f48e9083507f87ff3d429e1d9e242fab0d5e7099a60a4. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GXBDS2341252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ecbf068290aadea809a988c126a02401497d65db0916b8fb585722bbfb2f51. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:34:46Z), 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/GXBDS2379645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049a90401443a961474c67ee699b4ffd55dc0e49480bafda533caee9b6a95ad8. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GXBDS2382173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a60f0d5bba82bf587f7a08af45fbc5ee64790ad925d2b1b80813b90ec699a0. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GXBDS2341309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d8d5fd2ec6f494887b743167751dd5ebb507f9c572349fb21df203456c8f0b. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:33:31Z), 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/GXBDS2306920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e719e07f89f1cf375bae0cf9b9573062c0d980028e85ee703420cbff470055. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/SE6QE2391119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600ced796abe08f1dcfcd1174eaa304b415cad5a5176537573f14c369730c522. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:46:26Z), 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/SE6TI2335855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79fc7e7ff40d469caf590a60851355b97565063e4b511e2d935b18813554ed9a. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/SE6TI2318100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be26aa5b26dc992aa896a27d0fec2bef716673db96bb3fd82af94978153ba5e. 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/SE6TI2352015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0beb12d193214cffec7389061828da20e306ca703a6945544671d63d80ecd4c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/SE6XY2313340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb645e5d12fafb3f1b1fa257ffe0af2f7db9559d669f433e31b05050d09cdb089. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/SE6XY2304405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfba9def6cbdab11bf4e1792c3008a48e84b036e46ed66437e8edd33cb77a35c. 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/SE6XW2378874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026cc38c6a41d6a01953451681434ccfb33ddebbde15cadf2bd99453ce277a60. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/SE6XW2319525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c4c9a19b07fd290963113495be90513b78e253791dc3aaeebddccc1e4bfedc. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:26:12Z), 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/SE6XW2359827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e34bc5e39fdeeea2ebb5d9e2bd414639d39c57c95dda42057c490751e43247. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/SE6TI2321071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926753cfeb4c69f88dc4b5689fccf0d7761de4e36e0e57a8659fcf59d2be7ea8. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/SE6XW2313956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28d14de0d477b41aaa5e49b3f482e6c89c858a67c93aae4f57ce7c9c3c1a2cc. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/SE6XW2373902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd691f1416ba686f0c723dc7971901e67df03de91d6909a8c9852972b1813747. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/SE6XW2373833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa2ffcd1ab6f84a2d753bf5e988003b071dd38959768fc240d25fab60d86bd9. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T23:00:08Z), 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/SE6XW2393520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe780dbd075b7b9dc63b554e18112281fc9d5394d7d5be7aa9773af7b1fb08275. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/SE6XW2381161.