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 0xf09b4e05d73e181c31001e19312bd86421acfae0b3ae1f159c0863064b55bb0f. Chain 2 (Bitcoin): anchored in block 953701 (2026-06-14T22:16:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/769bf03d-85a0-4b6c-939c-7d68b549ada6.json and https://artists.proofprofile.net/proofs/artist/769bf03d-85a0-4b6c-939c-7d68b549ada6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I'm Sorry I Wanted to Be Normal, I Promise
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 0xae7a7a38149f0f70c10bab6d9b372c3a63c4a17e8a2ba56e311ca7aeadc4b077. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/QZ8LD1938870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a842ce5812d73233ad74822a0a5c756bae1fb429b9789a53e40355396ea2a8. 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/QZ8LD1938872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec14b4d15e40905cbdec3a9e5e6192580c20af4f9411cc8cbde8853f6b38463. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QZ8LD1938873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe8e61ec0e6a6580328f55450da98b4192f05a7f54e1c9cd543c5d27526bc31. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZ8LD1940794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807d9dd68419500911393ab3c03624251503267ab28a754104c37328fb82a939. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/QZ8LD1940796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d2a44c44ea4f60820418a9c1969b89610aff57ec4e62909d7b324ab5137046. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZ8LD1940798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d0bb70602d028a99edac907a96847402137ecdb5f46d7a5c3f6a9c72d5da026. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:32:12Z), 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/QZ8LD1940799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b37990a8e4ccbb52a493b68a4ee4c2d8202f9c369c8d07370c820b395d3c127. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/QZ8LD1940800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362e6e0fbe2e4f4d6ea8f126ae8089db7e26789a44f818897af40dba29df1e88. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:48:40Z), 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/QZ8LD1940802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe12094ff9c09f5570586c2afbffd8ccf7c32fdc90e148bb854bfb92258c24515. 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/QZHN32010083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296227024e5697e97849d27011531808658589bdfd09f10ad4df3a8db048cc98. 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/QZHN32010087.