right|thumb|A jockey riding in a hurdle race A jockey is someone who rides horses in horse racing or steeplechase racing, primarily as a profession. The word also applies to camel riders in camel rac
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 0x8ba1e6086763e4a066fc1eebfbfccd47f8ec9fe8c16effee452e31aa0958c7af. Chain 2 (Bitcoin): anchored in block 953617 (2026-06-14T09:00:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1a2c0867-400c-4d48-9d59-5ca2febd83ac.json and https://artists.proofprofile.net/proofs/artist/1a2c0867-400c-4d48-9d59-5ca2febd83ac.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 0x0aa6d0f501fad1d6a36d3d85decc8eab66b7c22e6438e5324bd598b0125d48d3. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZFZ42358809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855b6fe97ea9c4a64f8c3ff649152686adb2ed2c30572556cb02e097b3c5b820. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZFZ42358810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d09a703a3f35f44f5f354dd75bb1643d02b93b34296f02bc7d4fa96d26ab083. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZFZ42358811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d794cacacbd500ad288f5b9b16138cc14722c61077e242043ecfea6c4ef67b0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZFZ42358812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88fc3670e3394f43539617697adccb25e8d27e6a1121d7cb69f0950b79710f77. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/QZFZ42358813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a960bdc332f33bf966326a305f24872734e6268290839f9e71d6bb9651b7bc. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZFZ42358815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b6911e123c5ba292981c48e2fb80a7cfa98c9f144dc137512d730572058784. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZFZ42358816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x370011b3fcd543d0784a0ba8b1389aa874b11310a2716b2aa5c993ada68ba78f. 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/QZFZ42358818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25191ad197d7496377588bf7db03325f5443ecb82d17dc75112a98ddc991757d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZFZ62541667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51515194e886bfdbcf2c16f71a862881d145d283d42ae9714b43b2ecc2ed268. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZFZ62541668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97348441215abe45b5c9676dd687d4038c70f6d2005a3e43bac1c3f36f9ab146. 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/QZFZ62541669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70df97a8f3a15c4f4de17abacd76ebb0215d5349b6fb3996cd01e8b036828150. 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/QZFZ32413283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cad9cb7e963378580835955dc0647ef96949682c74d5314b92e7d3aea3672df. 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/QZTAU2380276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ade002a297560c91f6a084118f290ed284162aa6d4d5026563be04ed9be7c3. 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/QZFZ32413285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb450eea9cbc965a293bf6d188bfc12a74b532c84d7eb8ee1d6104a64bcdbe7. 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/QZTB82319618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb450eea9cbc965a293bf6d188bfc12a74b532c84d7eb8ee1d6104a64bcdbe7. 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/QZTB82319618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cad9cb7e963378580835955dc0647ef96949682c74d5314b92e7d3aea3672df. 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/QZTAU2380276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78cd4f852bdef3757a9c670dc1decac82811c222c53b11e5796b016b9578467a. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZRP42297673.