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 0x5546c2df2525f5368975468f9bf8d8a28b7b841ba005d1bc90c4c9c59f224da1. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6a7440c4-681e-457c-afd8-dc1d3f7eae17.json and https://artists.proofprofile.net/proofs/artist/6a7440c4-681e-457c-afd8-dc1d3f7eae17.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
อยากให้เธอลองมารัก
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 0x1d074c89a7f0e1b7784587a70fbdcea07975fa7435393a0b56091139fc724db1. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/GBNEQ0000049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b1f15874880f9a69131a04f3a3ec0e68741cb3f0cbc5ddce68c22341dbb3b6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBNEQ0000050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f12f1c3618208fa75e80e13797b9762381d6647aceb37c668bb6eb0e2a0787. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/GBNEQ0000051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb9aa39d03c44ec27fb44f5ba6d0a1b06a97d93302feb7714eb859cfca9f057. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBNEQ0000052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284c0d79410f8573ea43df9da4c5fc5c57eb2404fe4f321fb9ef9f318ccefbdf. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBNEQ0000053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfffd624f7cb5f8fd70033230fd3af1111c0caf4aaaf0c977e8d161f5c8f0f7f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBNEQ0000054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac57efdca55775a5062ee5c2257c33759d73e779b4f9b36f908c205d8f49e299. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBNEQ0000055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5566a1803cc9cc83ba8ae5a51815650ba5f69f5d87f27709d74f6b7b8631b5cc. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/GBNEQ0000056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b780db22fbc25cafb0c4fb1869d9facbcd00d1b9163a3b82473fbef25ec761. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBNEQ0000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x455e80bfe1c70e070b925470ee655bf6c99ba313ec8429e4e2317efd9e0d6e74. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/GBNEQ0000058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d0cc9e9dd2c573a8099790f4316dd63036623ac5ddd3665dd85aee4290d1303. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBNEQ0000021.