Thurman is an English surname and a masculine given name. It may refer to: Surname Allen G. Thurman (1813–1895), American politician and vice-presidential candidate Allen W. Thurman (died 1922), Am
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 0xe7c6705ea7ed471b05447196863bdfc773965e1d79859336c633b91cb2328fc7. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/49d535fb-bd32-4298-accd-49ba9d3c50c8.json and https://artists.proofprofile.net/proofs/artist/49d535fb-bd32-4298-accd-49ba9d3c50c8.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 0x9b5a6bcf8215a00ea264210f4d97ce793246e74868c9d9d66d2b9518ba86450a. 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/GBKQU2277824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf276a3eb862b0b1aab1ae7f490ebc8467e8b3202365e0d0d2499055f4d8b99. 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/GBKQU2277825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0faf5f76d05af551f3632025888d1b267863b8ff6f940c6f1cf00c6f0bd1602. 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/GBKQU2277826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c824d766d0180842a1878d241889a18ce15593bc4994a2cb21ed07ea14d8df5. 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/GBKQU2277827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b0d44d566b5d4e8cfbece901b0b21ef46234e4ff2acf12112bf7b243926c350. 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/GBKQU2228706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cdd7aef6a094571af2b84044f987c362b93f9222dd5b773797b0e669983dc23. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/GBKQU2228707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a9c2823ca993938d6917992c5364fb31943da45aec1ca9144c38d244a415e6. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/GBKQU2228708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81846db6b2c88a526c2bb491d11b10d65057f88f7ab264e9ae74ce3f57e24783. 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/GBKQU2228709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc6b7d9950606ecbd4673d0e948d2b963dd9025c952b9e322abfa27138b6bf1. 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/FRX282312667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x348539e6ee39e58df40ae1258683f6ef7d41bf11488b7f78794ce4eec0b009ae. 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/GBKQU2078389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e61ac91c2080de9e49db8e6cc421e60b83a4422a7c3b1b35910bb68a4bd103. 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/GBKQU2078390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7a9c9ee57ae4e8ea444bceda73477d395853db5f2b784bf5d85c56c4b04a80. 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/GBKQU2078391.