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 0xd3b904fc40687bb770673d435a281d6dc97a12a7a94682b731bdda970eea8ee8. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dad8a3ab-56e0-4bef-8cfe-f7f1008911fe.json and https://artists.proofprofile.net/proofs/artist/dad8a3ab-56e0-4bef-8cfe-f7f1008911fe.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 0xffdc6fdbde429f0913e4e854371a52bc1f5b0f96c66b3ef2054fdef02934703d. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/TH1111400338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398a960a747477f837e877cc9186471047f78f035ae35eedb40b5a6d83d04d34. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/TH1111400341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92c956dd1b6fe015e3906df02e84da4a324d9667b4fe192062edf3392099991. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:34:28Z), 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/TH1111400343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb464ea68d9eeae22bc7fe31ab757c9b985158014b6e959743770b97569c376. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/TH1111400344.
ก็นอนไม่ค่อยหลับ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1800553bb9409c1763ade67fde1ef45e142c7c45c1344c8e9ce50162e790f0b7. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:55:43Z), 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/TH1111400345.