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 0x02a9a1333d4c47f1260890aaaf5c36772c03d09f071b32d6f193b59b44804c7f. Chain 2 (Bitcoin): anchored in block 953678 (2026-06-14T19:23:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/634314fe-5abf-4814-94d6-a003c19e5681.json and https://artists.proofprofile.net/proofs/artist/634314fe-5abf-4814-94d6-a003c19e5681.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
អញ្ជើញចូលចុះបើស្រលាញ់
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 0x6345c698f760c632ad484928c834438675e1e9e89b626566d630ac1b6e1222c3. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DGA0H2307719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19eca56de6b1fc0458b1f981b3f755bf3e50114fbd053527ec48f0fb529c6fc3. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FRX202488332.
ប្រុសដែលខ្ញុំស្រមៃ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53a3b59b43547711ad397d43f74c15f5c85ab84ea4b9b4504c007ffb1e18f13. 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/FRX282460241.
ម្នាក់នេះចង់មានស្នេហា
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb28065f30c0d4c682feaa2be60352a82c7dadb1cc6739e1b1646c89d1ccd2d5. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/FRX762476186.
មិនមែនមិនចេះឈឺចាប់
កុំគិតបងអវិជ្ជមាន
ក្រឡាប់​ផ្កាប់ផ្ងារ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc7d9f18c76ee1c6de8cf8e451d26d61769c5b6081e4045d86bafa03e4cec34. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/FR10S2545333.
ខកស្នេហ៍ខែចេត្រ