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 0x69c1e4030aa973424861ebdc117f0b140d95265393d673b88b6e033ed5971d84. 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/7bda47a7-ad09-4339-b263-cdfd124e2bf5.json and https://artists.proofprofile.net/proofs/artist/7bda47a7-ad09-4339-b263-cdfd124e2bf5.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 0x25acb2c8e84fc63bb2aab97c355d27cec269017005452cc08033475733736b96. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/TCJPU2210568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb477fc74dc0d442f56ee0c07c78d00903a5328be9d9930333f2b8135e98724f7. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/TCJPW2320857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb477fc74dc0d442f56ee0c07c78d00903a5328be9d9930333f2b8135e98724f7. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/TCJPW2320857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71cfb50f8e1afe3d368f013a1bf95f348b3c17ee0639ee60d9f7d41374a4cde9. 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/TCJPW2361771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71cfb50f8e1afe3d368f013a1bf95f348b3c17ee0639ee60d9f7d41374a4cde9. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/TCJPW2361771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde28cbba7e4cb5d289aaf4b0d593d18a54d11f6069381f717e3b9ac48795f96. 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/TCJPX2313258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe378ec698eb7274636a7bf66599983b6704b3406c8c823927722d9e765c18dae. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/TCJPY2305255.
Some Things Are Never Meant To Be (feat. nigochan)
Some Things Are Never Meant To Be (feat. nigoちゃん)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e7522f841d81ee02d857a736ad0ec9e52bb8223df220c939e450ee661590561. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/TCJPY2337717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7373979a5ca902148d05519506acb9fdea8244b9cc5f25fda36e537db0c10de. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPY2480633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7373979a5ca902148d05519506acb9fdea8244b9cc5f25fda36e537db0c10de. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPY2480633.
Live in a different universe / Go to Hell
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad816b057eda5a280c000c742933f2c5ec24755e24269c7608b4bc37446da5b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPZ2456500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8576ee70b16aebea06c4497576cc5ae782702eaa4b463c772c3a0a631e7f4fe7. 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/TCJPZ2456506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad816b057eda5a280c000c742933f2c5ec24755e24269c7608b4bc37446da5b. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPZ2456500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f11e134c2eb25d92aa12fa327f0a708dcccc81bcd71e94c9a991439d16a4d28. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/TCJPA2401102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f11e134c2eb25d92aa12fa327f0a708dcccc81bcd71e94c9a991439d16a4d28. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPA2401102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b7e3c3fa3f6a9ea22abb723a9bf69e1d159c3995c22fd6205d9ae43c64122d. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/TCJPA2462135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a0f4999bd0ff4fc86f4891851f01850d3bd0973db4bcb7f091072816958c7d. 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/TCJPA2479688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5331995e0170aeab034f0a8b428087a69b7efa4f310dd6910f7ed17e22548915. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/TCJPB2433350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88dea92af277a58880cf3e68362c42d3045de4c64f7c4c96ff609e98aa27cd9. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/TCJPB2450301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ac9402da6f1ef88fc2ec34e9a30ab0f33d499f138871e8726db3b15565016c. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/TCJPB2481174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ac9402da6f1ef88fc2ec34e9a30ab0f33d499f138871e8726db3b15565016c. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/TCJPB2481174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd1a1bd4f781e845094fab4b0398a8c03f68852434300ee946b50675291325b. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/TCJPC2401898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd1a1bd4f781e845094fab4b0398a8c03f68852434300ee946b50675291325b. 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/TCJPC2401898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73721634b33f305cccf934f668ed3750c6db45d28ef631666030539fe9fc6ee8. 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/TCJPC2485927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1d7dce62a210c2d3899c386c42812aa5e0e8d9cb1013c9ac083ff72b239594. 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/TCJPD2421101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c1d06301d98a3173a7b2c4a982c0f422e53372d656e46b0d4caddb9ff73c19. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCJPD2536228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c1d06301d98a3173a7b2c4a982c0f422e53372d656e46b0d4caddb9ff73c19. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/TCJPD2536228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8456ef6d3c501221f725b26871f9407325740bb396ab8111eefb63094de709d. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/TCJPD2570573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02c15e74d4ee8046885003c74b898005cf5b65b2f9259206010a2807d47e3ff. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/TCJPE2542048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d7ba0a55d5eeac66c2c6884f5634d86fb2b31cfb36b6c62b4944adf00d088f6. 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/TCJPG2538533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3e18fafc50492178657aa793ee554b2d43b57074a5e371f2cd4bb12c7dfbee. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/TCJPI2540019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e06e19b585329ef0716a9df1a2f1a07d418f9e364d291b17b6dd274d806259. 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/QT66K2555793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d99fcf5619f512700c29990754bdb2629281a35ba57062ca429c8f932d815b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPB602402105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d9389e9b97b87aeed8a1ad7a3c684157f8f8ffac33867002d720964e4e70ae. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPB602402106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18c0bd268266764861501d90ba26da84311a9ca6f1b913afdc76d155e58871c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPB602402107.