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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1593e2933053c916dc599ea000568535cfdba4e43c1ed0bf15822f34fc26da80. 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/2b38065e-d5b0-4abc-a958-c8baabd47b98.json and https://artists.proofprofile.net/proofs/artist/2b38065e-d5b0-4abc-a958-c8baabd47b98.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73cb66162e8398a2da0d64bfc6c123a543b68aa84ba687dfa77531c44ebb5e99. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/THG010811907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf95013ec888d0558f445d139a1bc4e297a7e80429cc62b16f7161d0b353f2537. 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/THG010733497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1b4e82e73e2a62e8e9aa96fde5a684d9e296728cd97520083d7b4bfcf510f1. 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/THG010733500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a021c898de667af5b6965817b335623b4be6f71d31cc581f6a09c0f4cdd20b. 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/THG010731372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc14a1594003e8d3905849662c9809d6ece9942ed475b6fac6d3e348827e6aa8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/THG010810292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f6d1be8398a7a28a155de17a5cd95653c276b8587b694120f1b343832d9ad3. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/THG010805440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9938d703a5eaf86f6d6d4b521b919ddef96c4526686df186fef3b4fa61cb7f57. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/THG010805461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935cb7cceacd26f0c2e1ca916532561c792f4cb38017b772f2d384a279e3ddb3. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/THG010805441.
เขาที่เพิ่งเจอกับเธอที่มาก่อน
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95bafff61afc1368ac16c8d76e701f91362cf9e93286e896061e43f1e1f3b909. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/THG011300256.
ถือว่าเราไม่เคยพบกัน (feat. ตุล อพาร์ตเมนต์คุณป้า)
ทั้งที่ผิดก็ยังรัก
เขาที่เพิ่งเจอกับเธอที่มาก่อน (เพลงประกอบละคร หงส์สะบัดลาย)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb044447eee590e54c55925178e3ff64ca5ca62cfa1899fbdf72f6385d5792c8d. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THG011200589.
อยากเป็นคนนั้น (เพลงประกอบละคร แรงปรารถนา)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d5e2e44962e963a74eb2c0ea024dcde76f3433413a88b0df1141d01e8726e3. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/THG011300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73cb66162e8398a2da0d64bfc6c123a543b68aa84ba687dfa77531c44ebb5e99. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/THG010811907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5373f9367d7711a5a426b540e79e4c8d69bebdde4aa4b9cb813cbba3f3fc98. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:06:47Z), 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/THG011400197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53313895ffa48583930dc058e9e3de5222b65faec9e66e370a477337888e4a2e. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:59:13Z), 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/THG011200516.
Bullsheep Detector - Welsh Punk Compilation 1980-84
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa61b5c4e4026654ee6e424dbf9549805ea860e6c347e8e1429d299d18237f913. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GB46L1202003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01819950ba27a1de31eb7bcd1df2734007ff56d7cb9e62b247e602bf68f5dbf5. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GB46L1202001.
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