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 0x939fdbeee7a49ff19764afbbbab31d3c1ba99ccabb2911a03722a57b6fa69c94. 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/ef363f20-4bde-4f52-b1a2-fca5182f7af2.json and https://artists.proofprofile.net/proofs/artist/ef363f20-4bde-4f52-b1a2-fca5182f7af2.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 0x28ef40cc43bff39c2da4fb3808aff1baa8e1400c79b71dc65bb7a7eae6b9cd69. 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/FRX762124491.
แด่...ความทรงจำที่จากไป
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364ee894d67bef2f8caba44b8e3876397427840bfc863fc35449f0599b20a2f0. 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/FRX762124494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04367398ee9757e2cf8ab0469bef0bb66d8d3e1f538381678b2da762fc7bc28c. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/FRX762124497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9221613ea97a69e452b66e769a48fd255d1c2d21f8d19476943268a0a838e52. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FRX762124499.
ความสุขไม่ยากนัก ความรักไม่ยากเย็น
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae94d859b00d8e0f96e0e795b2ce84ae852167f32a9d5137b0e68338af71b844. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/FRX762124513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f29241502fd359a8e267d1e033f5de4a5d7b598afec8c82d5a1160417fd5546. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/FRX762124517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca2af4cb2378d2bdaec2a72e453d334673c1056f8806e25b022144b56dece25. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX762124518.
เกมส์รักคนละชั้น
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa49297057ed96db037e8cc05e078b0f19012f6612814921298ab6728ef0788. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DGA082279463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7093740a27236527529bcdf9576ac251953f5837fbb145d92f64439612740593. 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/DGA082279464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2930924f3421674ca253ce95776a77aa9faa625537380fc8f0feaf27af8e1648. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA082279465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d803f2a22e7fd40cee28576de1e0098e831ba899d1c479d88ef547c704e6d4. 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/DGA082279467.
ธรรมดาที่แสนวิเศษ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02adc5dbfa51004fda404a8930f4912cce7c733690cbe09eb441a0ff8d923a02. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA082279468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6ed899cd50c52f810235b20778f719893dff7e9b0d3ab73c401d657f03c148. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA082279469.
วันหนึ่งวันนั้น
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1122e377872d2f696787a500994564c59ecd4a60b2ee1e584a35ca70c02d8d79. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/DGA082279471.
ยิ้มแย้มแก้มแดง
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaffb36aa940b7da7dee8a2850820bb5187feb9329760c02a99b7fa4a6409a9a3. 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/DGA082279472.
แค่รู้ตอนนี้รู้สึกดี
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddbe1f37456735aa8d8a715a9c26d66c9f2bd47a808835bcee1a3e8ea88a666e. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/DGA082279476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2e6772e53e754a69519ac1bd68558852f4d70c952afb14fb0d73720e390e65. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA082279477.
เพราะรู้ว่าสักวัน
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833e394fcb316cc99e75ccea4108d577ae4d1094f306b56c7eb8179ee4d1212d. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA092326787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba48a9b3ab8e5c146b08e3b80d451347707201bd58d5f6c65fb4756cae2f17a. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/DGA092326788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda1605758a215482b700abd1bfc981ee1da3644c3a7760cc6d731b57824407b. 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/DGA092416779.
ใจร้อยเปอร์เซ็นต์
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc6facc87738e38dbc6473b6a9b146e612c52a1cd7d1827452ad754286f1bf7. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DGA0P2388409.
อาหารใจในเมืองใหญ่
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9028cae6058d389e63d3c9cd0cb89c85d0b42c343cba7b4f9acd9db28adf24. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/FRX452480496.
ไม่อยากจะลาเธอเลย
รอยยิ้มแสงไฟและสายตา
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7e0f2fb4f6612cd9461e86577078b22fde3be70ad952ad49b6efdf176830e6. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/DGA0L2429649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b7fc83296e126549947f6751bbfc0fb7b90190b6f04521346438db7d73bd46. 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/FR10S2595889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee75b6f1ec3127a5489638b09e12a8bb731ecdef244730c9f44851fb7822f078. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/FRX202530746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba49bf2d72f2679c87456abe3b1950b65200df43c75d31e847cdab7e5842b62. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/FRX452599503.