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 0xd6a37a2b6327b4a7d79395f0888f21d24b5facf852b6a533adb8b0ccdbcb8f84. 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/cdf7e3db-e5ed-4a85-8578-533c11636f1d.json and https://artists.proofprofile.net/proofs/artist/cdf7e3db-e5ed-4a85-8578-533c11636f1d.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 0xb0a2a76be3c99bc354df94aa6fba5b03e468e11430666cedc6ea165cb361a5a7. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZ22B1863512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8730988131c3c9fd23c441ec99103bd37dae8c743b29d43fa3679e7e00e4b3df. 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/QZ22B1871828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e153bcbd2939a7927ee747681c9cf5c27b2857cda416810c03185e508354169. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USHM91915403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7220caf0ffa2e2a0c18e4ce138ddd1d2b3c19086534813e7b8f3b20a9449180b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USHM91915404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef9146f7c399c5fa31a707f56e9bd31b32d4ebc3868b890c73e9d7672a28219. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USHM91915407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b5e5f4a516954167792c408a5079f041f374cfacce497ccb41a6fdd6595702. 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/USHM91915410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1100f1d1646bfc43499d51c2fa13ab2d530eeb0bff91b5e919c87786dc4057fe. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USHM82085720.
ตามตะวัน / หลงจันทร์
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04cb5b95c25add31e79752fbacafd0681e3bb1eacd53a33a37672970227df15a. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/USCGH2179927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d964a6a248c8381a8382a8edef2265d3d9107eb551208fbdb76752b8fcfe100. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/USCGH2179928.
อีสานม่วนงัน (feat. หมอลำบ๊อบบี้ ธีรวัฒน์)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe9c25e954ef6fe3dbd639f28a9f11d0e410064e33934918878228fcdbfc844. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/THG012100506.
ถ้าเธอคิดถึงใคร (If You...)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe0d9ebdbb8b3b79dc33baec852bff9a65601bcc76607da623ca6ef36fff7c9. 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/THG012200438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe0d9ebdbb8b3b79dc33baec852bff9a65601bcc76607da623ca6ef36fff7c9. 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/THG012200438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f71545d277a31d7609f955070ec02b1918741d8cf41d75fac586913ecbe764e. 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/THG012200090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2031f3c363e1bcae0a69fb01a48e40e13236850fd1a1b1e41cf53762fc2bd3b2. 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/THG012200451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17c27898e8e1dce8c49e0a83aa839e31e876d995ef1687bc366ac5e51bef0eb. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/THG012200454.
จอมขวัญ (เพลงประกอบซีรีส์ "หอมกลิ่นความรัก")
จอมขวัญ (เพลงประกอบซีรีส์ หอมกลิ่นความรัก)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe00082ae3827df9114cea869af103baaabc6d4dadc3fd8e091b0111128ad1098. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/THG012300488.
สัญญาต้องเป็นสัญญา (ซนซน 40 ปี GMM GRAMMY)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b4cb9d81a3af606688e811d6eb2e5f096426b6008055b45cbafa257d675e66. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/THG012300286.
สัญญาต้องเป็นสัญญา (ซนซน 40 ปี GMM GRAMMY) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aaa77616953000e776cd4b6fa27caf0039df2a201103d0b77bd7ea9c743de30. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/THG012400071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544b824c404939eb205fb8dc678fff174cecdda4f9c1260adc180b91b82a0d68. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/THG012400701.
ฟื้น (Reborn) [เพลงจากซีรีส์ "ทิชา"]
ฉันยังมีประโยชน์อยู่ไหม (Am I?) - Single
ฉันยังมีประโยชน์อยู่ไหม (Am I?)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286b202e12325164623fa634ccef837ce06587a8eb73e35c6154ea207502b0d7. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/THG012500479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf6553658bca9e02835e03a335fef62d62d5a3c147ae11fbfd9963ac65300d02. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/THG012500482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e221ed610deaa287bc595510d094904e8f8093410e003e1c5e7a78149cf365e. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/THG012500483.