1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xd89f582efcdfa8a080ce12a4cdb995e511d7ee555d6d156b01f0b2369461fd2d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/253f94aa-a4c6-443c-b1c7-c5262d0d88ad.json and https://artists.proofprofile.net/proofs/artist/253f94aa-a4c6-443c-b1c7-c5262d0d88ad.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 → block OTSBitcoinBlock must exist at that height 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 0xa67268c1f4ca005f5bd0141fd8664afa63c11faad13069764b4ffea6af41bc4d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPB452105760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650ebb9db4fdf773864807d611c5552fc0a966d517bf810256f6f8f3b4856d8c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPB452105761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f26870344f3b92b6d06d7884b65cab9474da234bd69e59de414397327d02e1c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPB452105762.
ワンス・アポン・ア・リバイバル
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54dd666b33072d242d683065ff3d2d03ca6bcde63b783edb9bece6343af22b11. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPB452105658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69886d26c44e9edbb8896e5e2d3742ef58052a9a0fa435e91e101917f23fe1f6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPB452105656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29515534be22faa4d6d433a6170820d200f97c91ab049ddfd70a28563d39e0fb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPB452105808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67268c1f4ca005f5bd0141fd8664afa63c11faad13069764b4ffea6af41bc4d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPB452105760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a2928672e2c9f10c821fd70e2818ec8cec1f329b81787516f85299ee53317f8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPB452005624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d61a09d18b8be0c43c66af071f459477cc2d39b0ba44e7878806384a2f6a86. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPB452105834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda6a86acf501dc0724540d21268a943ddcb40a0d282ae557d47d4e4ebac40ca. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPB452105833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ada46350902beef7fd65b8af106dbfab955c8ed639cc634658664113ba29e2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPB452105835.
Talking Box (Dirty Pop Remix) / SPACESHIP
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8222f06d8a8a5ca5a57793d687fbabe58b7d22831589a7460a0188ab0a3e1b9c. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/JPPO02300996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f5bd199b71c06bedddbcfec3d3a5e1aa603629eebfb3495b50062ccfd19f60. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/JPPO02300443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b6536abdde29757b93782e3e3a33a6b92482180f23483d032a655c1b774375. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/JPPO02300066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4656d64f7558da4a4c587e44bb098bfd509ec4f735b418ec201b0b2e0a00be. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/JPPO02500933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d537d6b6d4e957da696de42a66d64d30724ab856903780388d09d930190311. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/JPPO02500937.
もしも生まれ変わったならそっとこんな声になって
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de9c52357da794b573b473f2387c15df8c8b9173f8021d3f4593ca8a34d5a6e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPPO02403460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b55c39a9310e3535339fbf83762b27f95a0ca4c0d2ed9144ab1b8cb0a0ac890. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPPO02304533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5241b98d7b70111d135b11c273214c90b315144d7d3cb4ef4aebae09976eb2f. 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/JPPO02302019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5241b98d7b70111d135b11c273214c90b315144d7d3cb4ef4aebae09976eb2f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPPO02302019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9bd0e32a00a152c1cd6efb82074b1b4acc42d92e9798888ab3f47405eb777a2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPU902203264.