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 0x31fd164c8d3722f6dff4836e58a3b2abe18feac17eb6bcd913cbe43d122767ee. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4a264cd2-b129-4a84-b550-4497e0e73a5d.json and https://artists.proofprofile.net/proofs/artist/4a264cd2-b129-4a84-b550-4497e0e73a5d.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 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 0xfdd3f7691aafdf8de02b102dd626c448d4b035fd60f06ec2ccbe03bcb3f68569. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/FR10S1900414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44dbaaba7a4f1af05bd90d837662ee8e8d045ec3a5350b6e852d13ad5f398c35. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/FRX991960771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x243409aff2fb7903c87b284ee68604ad423f64b26ff467f91ebd3ce6167a510b. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/FRX991956165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc121984c3248c48b2891666819231908f8c10b383ba69986095aa5b09e9b671e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR2X42089244.
Hed-Hai-Seng (feat. ไข่มุก รุ่งรัตน์) [เฮ็ดให้เซ็ง]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6fb72128d5fda0b1c3f254b05b58045c0133d99605262e101a0df584f00ad4a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TH2DY2000058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44bbb40e3c5c77d57bc5249d63cfaf8ef56b2787b429e28d83469f5c52af2d53. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/FRX992040417.
รักเดียว (เพลงประกอบซิทคอม "รักเดียว")
รักเดียว - เพลงประกอบซิทคอม "รักเดียว"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa4f0bb116072e2f2a444d46c97000deb60645cbb0714e7e568a9369ecf5ad4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/THG012200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba522ad9b0892f3f6b8e43cad9b2cd048ac582eca7ad0a8c2289ad698e84d535. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FRX762370821.
เพื่อเธอฉันพร้อมจะ... (AXEtractive)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4ed38bec0263fe58e0c29fbb8b6b62455d5654ac5d505a75bdcda424a9260b. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/THSOH2307828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe618b689baf9663fd173271eac7c745a3a3125443b32d42e9ecc57aceaa733ff. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/DGA0R2340320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e78e506c5fd7f4a3a0301c76737d8fcab2d431678796ff108f32857d0cd5d02. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DGA0H2411991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9002c58b5befb94b7104d2fce39ac0cb6dd24a22e5cf2e2fee65bbaa5f15a5e. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/DGA0Q2350535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5061c4f66f371605289cbad8c1c2f8234dfa1dac0fffd061b6475c8a7a15a2c0. 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/FRX762293100.