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 0x1d4e015724c132a486f2e860437ddd689dae97b8b6e022a798dd2ff54d15326d. Chain 2 (Bitcoin): anchored in block 953746 (2026-06-15T05:25:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a56569dd-62de-43fa-8fd9-8b7f151d8699.json and https://artists.proofprofile.net/proofs/artist/a56569dd-62de-43fa-8fd9-8b7f151d8699.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ATRI -My Dear Moments- (Original Soundtrack)
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 0xa01cd8fc17bf4373f3e8b60105017ac6d7e4e771c20ebda06bc823fb3948ee45. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/JPE302000748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ffe65c6998eeb6617dce49eff90e58d3a394e38b4872a46a5e5326edae1d44f. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/JPE302000749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0697e66038e270e129882b94f5e5601460db31e20c262405e2d2389c8239879. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T04:03:38Z), 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/JPE302000750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4bd2fa7daaee4cabc181a67504c88215d11fca3b4e55e79d911eb1e036040a. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/JPE302000751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0a115bf036297bd25425460a55d46723d843f785eff89f0fe147abd50b0bb6. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/JPE302000752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd83e5a27288d8fde32799576a4db063d7298ab7fece60434b7a852b6dcfc445b. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:03:37Z), 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/JPE302000753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629cb48cff173bcc20f56069749c28242a74dce3a4794a8179445b051d2abb26. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/JPE302000754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069d95062d40a0af229276b02e7e0a923d8cce5d13dcbc245bc0017f08a108e9. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/JPE302000756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ccc7347d3be66b7e124b17192d53c6cb3176831b09f1ba96543f4596397911. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/JPE302000762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11164c261f088e0210f39a3f05d8892554565566a8648857fb0355df84412ed7. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:43:20Z), 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/JPE302000766.