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 0x394d4db9bc00bd258a5475827c148441bdb6ebd37c682c4b08cccb12df31598e. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2990160b-5495-4073-a3d4-d962bf2eb401.json and https://artists.proofprofile.net/proofs/artist/2990160b-5495-4073-a3d4-d962bf2eb401.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 0xf3e4c8ddb631edf970cc876e5957fdd375ae92abfa6a14e358d126039e06ccf2. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/THADV1501815.
เก็บไว้ก่อนเธอไป (Remind)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc27dc219b91267255f12719e77aaf0fead1172c0fa6f2632dc8e3765034d264. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/THW092202866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f20e63ebbc91948d8497dcd9e656e35e5f5a041e2f4e844f5fc9d1e784b752. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/THW092301352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f20e63ebbc91948d8497dcd9e656e35e5f5a041e2f4e844f5fc9d1e784b752. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/THW092301352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc27dc219b91267255f12719e77aaf0fead1172c0fa6f2632dc8e3765034d264. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/THW092202866.
ถ้าไม่อยากให้ฉันเสียใจ (Gone)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb444aa6b1d78635435ca4dbebf5fd9e6efd88dbf8770e384b6c7d1e8517df7c. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/THW092401919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e3e6ae17bdca50d26a3bbed598c7cc7144bc35cbeda281b47cae42afaa3594d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/THW092501633.
If you cry, I’ll cry (feat. H I N A N O)