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 0xb27b85adbd319742719fff5f52efe60e4c3bcff2704d677184de594a6c64bd47. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/de9a901e-9b2b-4e1d-a678-f8c46a23dfba.json and https://artists.proofprofile.net/proofs/artist/de9a901e-9b2b-4e1d-a678-f8c46a23dfba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ร่มผกากาล มหาวิทยาลัยขอนแก่น
วงศ์ผู้ไท มหาวิทยาลัยขอนแก่น
สวยเลิงเลอเคอสวรรค์ มหาวิทยาลัยขอนแก่น
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 0x216c59d8f9c0be39bc7a24968908f6e9f2dcc18fac44067391c4ab130de48d26. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/AUBEC2526401.
ภูไทเมืองเว มหาวิทยาลัยขอนแก่น
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e95fc5f5d6c8d0468902b6e96789283f1ecf3aef3248f209290701bfe0c2c4. 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/AUBEC2526403.
สกลสู่สากล วงโปงลางสินไซ
เทิดพระเกียรติวงโปงลางสินไซ มหาวิทยาลัยขอนแก่น
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199d6a4fe02b31dd8eca92bd63b424b1c86f89e642d85e0ac841fc9a6b9ae238. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:13:32Z), 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/GXHG92575004.