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 0x0f3e79b0d093df0c4854ed0287502b0931da84188f591f01bcbc352b9c7a6648. 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/3f4cc4aa-9f83-44e6-be2a-952f41fbf388.json and https://artists.proofprofile.net/proofs/artist/3f4cc4aa-9f83-44e6-be2a-952f41fbf388.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0xeb679381d2a8281888a8c6760e1e98ed72502957da06252533843d78eafea762. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THSUR1200002 — a six-check JSON result.
มอเตอร์ไซค์คืนเพ็ญ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59626ac7861894c6a1b509029e4e2232a5b9a2617dc2c17800d8c0d7ac18f6d2. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THSUR1200004 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8696c70af7839ce9dbdde9cf9f179da2aeb56909e0637e91a374b713c54b0733. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THSUR1200011 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1cbed6054d4485fd1d5292308c3be2966fd47f27c8023edafba693f6df66470. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THSUR1200016 — a six-check JSON result.
ลืมคิดฮอดกันล่ะบ่
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb189bce8e65b56eba41dd37a00e65255f2974246bee7a8893aa655b64b0a8570. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THSUR1200017 — a six-check JSON result.
อ้ายเเพ้เขาหรือเจ้าลำเอียง
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a08ab856a6afa11d1db81fa1ac5e2e279a64d67a5640ac578cbb11e9e059a1. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THSUR1200022 — a six-check JSON result.
อย่าบังคับให้รับปาก
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc11a605b150acac5375a5943d7f2ba341f2b4bf723d06266048be60fe0f5baf. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THSUR1200025 — a six-check JSON result.
ขอเรียกเธอว่ากำลังใจ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ebd972f90b0cfc464e29353490078116dc883b320c2a211da588ba5c1ed24a1. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THSUR1200028 — a six-check JSON result.
หลายคนที่พบ ขอจบที่เธอ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3699cf22c3d638eb48713c884c0021efa2e04853755284ded7424a4473bfd3dd. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THSUR1200029 — a six-check JSON result.
บ่ตายอ้ายคงบ่เซาเจ็บ
บ่ฮักจ้างกะบ่หึง
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a922a664c290a4a3c5c2ce2fc6163bbc4c4a6e88d277e8d5f4b1517c7bd280. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THSUR1300036 — a six-check JSON result.
เขาเหงาแต่อ้ายเจ็บ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda93ed1d0cd0b9823d9c8d9dd3993bd821ab9764400cbe091dc3026e86f5ce43. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THSUR1300038 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbafb3683daa9065865710150eaa928e9424ccbb298894348c2d03e962ae9417a. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THSUR1700007 — a six-check JSON result.
อ้ายกอดเหงาเจ้ากอดไผ
จุดจบของความฝัน
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97895bcc910bd5a7430fd9c4ba8b3998641408df4874debc5a081011eecdece. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA062219613 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafed61b651c4e9cac65228d6b63edbeac76ef759462525511a04ca63450054ce. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA062219550 — a six-check JSON result.
เหงากะต้องผ่าน บ้านกะคิดฮอด
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x570552b2f8fde014c0d582b7ff8779d9e49765f627b685a06f3c71d0fdf0a549. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA062221449 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55081d906b2b6e180a0dbc3bf6b2c5cee364e6a0045a25f8d378c6258d3f399. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0Q2487219 — a six-check JSON result.