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 0x7195deaa22481389388dd88c31921a9b096889797edfb522ef3784fba28bce09. 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/670f7561-4b0c-48ee-bbb7-494f288c91af.json and https://artists.proofprofile.net/proofs/artist/670f7561-4b0c-48ee-bbb7-494f288c91af.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 0x25a932f5bf4efb6a6bcc3be672e264dd7b065999f2925a3462335fedecfde316. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/FR10S1927890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0ad3dda20843a359be6f0db7b49917b5e7951c1266d7c1eb3c477ce8a3cbfc. 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/FR10S1927891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204245a04347d55c1b6f3708400b66ca0a9b78d4913f660fccc5891975929c84. 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/FR10S1927892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10ba4ca5a72f0f4575ca0b00aa6ae234667aea4a2505071182e25dbbcbdd7cf7. 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/FR2X41901531.
ให้คนขี้แพ้ดูแลได้ไหม
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3077034a05ca9ec574dabf232746b0c2ede3c4220708179151691dc7375cf3e8. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/FR2X41924280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe9e9cc3cfec9c22d5ce514c5ebae4b194efe4d01f06de849ff4ec197015f95e. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/FR96X1933431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ac0d42c8d56ae9a69feaff11dc2dcb59f7813b13f56bf0854160a12420b484. 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/FR96X1962925.
สมองสั่งให้ลืม หัวใจสั่งให้จำ
ร้อยพันหมื่นไมล์
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2a43e22a728d3597d30a0a3240d068a44e9605828e89faa07de172c669b83c. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FR59R2157514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3dd3c5a3c18e21e358f5dbd85d92d9ae8ff60557ebf4d53a688b35e9b4a80f7. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/FRX872154937.
ไม่มีน้ำตาหยดไหน ที่ไหลโดยไม่มีเหตุผล
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe21f3ecdf593281ac50168d9ecb21b47e12aee35bed2e77a37c6e721e7929d1a. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/FRX872165083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeffaf451556fbc8606c39100d6eb6ac8a44ebabad2d9fce316233b716e99af98. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/FRS182120784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd308fb7ebca286a21265fcca417d3f5391b38ca401bebb7915c424622db78808. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/DGA072283901.
จิ๊กโก๋เมืองชัย (เวอร์ชั่นคนชัยนาท ไอ้หนุ่มเมืองนก)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb88064389919da4e77ad9c86e66d4e1911085d166356a68124b17d4e7b09ead5. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/DGA062472884.
คืนที่ดาวเต็มฟ้า (feat. OZH)
ในใจเธอมีแต่เขา
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88dbdeb3a3ce811e460197fe8aedb34f519160952ff7286b29b8df9638e7e7a. 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/DGA082466226.