thumb|right Joseph Hawdon (14 November 1813 – 12 April 1871) was a pioneer settler and overlander of Australia, and pioneer and politician of New Zealand. Early life Hawdon was born at Wackerfield, D
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 0xb7294253d3f7d61d73a4285cb286589dfed4bc2903943f3b824b3cb91b2ea621. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2cc93288-2bb1-4898-85eb-2c0dbdb40d3b.json and https://artists.proofprofile.net/proofs/artist/2cc93288-2bb1-4898-85eb-2c0dbdb40d3b.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 0x89d6bea29e14284010964ed55e60936a1b3613e503ef5be7787b5112c5febd54. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/GBSMU4133258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a05b5b743444a5c3286803d83c45969a5ea5df3d4a6f5e7894e314f207d867e. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T03:52:45Z), 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/GBSMU4133259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed512277395452eb5c84af458313eb33327858086760cb7a517281446c6a9755. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/GBSMU4133262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a0c2dffdc1281f7f50c1e4ff7c2f3eb0ce7068455aeb7831553deb0d363923. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/GBSMU4133265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb538950ee29b0ecde28459604e7811abde2b04e680956b3787027f4ff6477289. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBSMU4134366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dbccd353c2a92dbe2ed6d78b5353ce7a8195bc5e265fcc11d5279ccf8f8e738. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBSMU4134370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42fb9d2646423e4187c316305f88717128553e1830670d01b691b5431785beec. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/GBSMU4134372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b3945d35e5007526f813a8b378efa251f618a0800cdfa9e92a44c6f071c64f. 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/GBSMU4333160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3823bef9030e1409802372db210c22b58a4e026170b47db72cf28ef91915f83f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBSMU4333163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476b7064634d71e495be6d12dafdb9cb16c214392719e6bc5168c75b563f07a2. 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/GBSMU4333165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89918e424a1336d6ef54288805c0749a213ddd8841591bad1e99c8ace25264fe. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T03:10:06Z), 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/GBSMU4333167.