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 0x0cb5e228d1d42269cf92dafb13676dfb0123aff91d31c54e66e545b0ba585546. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f2a67d97-4db7-4541-8d92-742834d031fa.json and https://artists.proofprofile.net/proofs/artist/f2a67d97-4db7-4541-8d92-742834d031fa.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 0xb659f5ea0aaa1262ea30a9cec01e102933a750d32d7874c7eafbe925096e4686. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T18:11:02Z), 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/TCJPG1717488.
All My Friends (feat. ゆるふわギャング, Yuskey Carter & Elle Teresa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2708ed0688240b4da04f700640f068c00a85a8238b088c42acc0f851eaf9b65a. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/TCJPI1821688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69896bb1bec5046feee331856a009fb7ca9092e0bf493617ffab8f9d607d3be0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCJPK1922519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68686254b2438bd263d739c5c95a97ebe0a958f20b962df860d8b20d8b82448. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCJPK1922530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46dc933d1269016d6b7869660960a38a08f1acf9e763368b6ba5a5d0961e4c7e. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/TCJPK1922544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x396c96044532ce612f88e78b814f24c1df7e21b2701bd6676201050367731250. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/TCJPK1922565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e5e54e16176bca45083440c7c34d94523080aa73e6c5886881a1158bd744084. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCJPK1922568.
VIRUS (Remix) [feat. Ryugo Ishida & JNKMN]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda96b4d69408ec9271edaedff4c47e13bc1bb7921a854ac3f90d13240a3858d1. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/TCJPN2025602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c45a60d21caa4e1ef583fc772840bd4c48aea48cf00d1554c343239bec59876. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/TCJPN2025604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f1fd82a0fab0cfad6141f289bc0a60f03803c7d2637cbc33908a49b18421e7. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/TCJPN2025606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399f086029450191e428964838001a6970a7a2befa3228cd7a530530294006cf. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:38:27Z), 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/TCJPN2025609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6731d8b9b9c4f8a055647eb4e515bd9dce7eff9f026d99c6ec06ceeae7e714f. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:43:33Z), 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/TCJPN2025610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb330b698224ff1f4dc758dd3f4906e3ea94a04d4bdbeed7f0bc2a228952b1928. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/TCJPN2025640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf5b8b5fcb51738eb5b1a56e0be4653cb241614a82c23d9f228f00fd1d36a0c. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TCJPN2025651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53176faa32b80b4069bdc0429993bde573cda4546dbab0af37c366bc03321ee2. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:20:20Z), 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/TCJPO2195153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260ba8e42fb96e3bb55bb7e94addb1bc15e9cb02db139ef36360daea0beb7a4a. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/TCJPR2256841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc14fd43bcd5bdb7ed6c34896690cd3d14bba0dfb98c18b0e0570ec61f4fa83dd. 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/TCJPR2256844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020a39d1a5383626e1fdcb18858fd0edb6293278cf968812851286011a1fd8fe. 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/TCJPR2256849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb7513c47cb4128e827ec20df98c0fe25dd7f5a140a003cb516bf45c5b397de. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:05:30Z), 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/TCJPR2256852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ffbb8702378b49be8610015f42dbb5334ff8bc41017c250546543a72baa0ed1. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T16:25:56Z), 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/TCJPR2256854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37861f6669d225ffa23a9b26edecfc14179a0f85c257aae9b8d31b0c4d31de4d. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:44:49Z), 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/TCJPR2256875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3072a0b381e8bc498f2cd657ddc50012a70a0995c6214ed914e556b9a2e68fd. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/TCJPR2256891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aaf82d0c0c0212aed0115046604fbf0fd09e468fd53bd3131fbf511c3add2b6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCJPR2256874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea38b1f3e2826b3ddadd7eda771d401de1c0bd539b47fc8a532e8cb27d5e83e. 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/TCJPR2256882.
Controlled Town (feat. YLE Hide & YLE Sklug)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a8f17f34762dbee889817f0ebfe296355ee439dab9789d97945042c691338a. 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/TCJPR2256883.
Gettin' Money (feat. SEEDA & DJ TY-KOH) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b687a3e0d7ad01cccd15b4d7abc9be473a03f4963f114c4a7ffbc5082270ea. 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/TCJPV2318049.
Acrophobia (feat. SEEDA & Watson) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c63ecb95a6b94c1c3154d5c70114946cf74b672489ecf2e8e9c08e1d090e9a. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:23:21Z), 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/TCJPX2350365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4938a7eb2d300769be8cc98b7778bfc0433115f10ede7a91fafa6acccea9114e. 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/TCJPY2342210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50da71682b7834822a5caa94bd5d00b5508a67b128940a0fe7aaa0a3d703730. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCJPY2342214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4938a7eb2d300769be8cc98b7778bfc0433115f10ede7a91fafa6acccea9114e. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCJPY2342210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be1d4caa92789ec2060a201c55174453c3bf289313fc54dbcae7f6feb11b380. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:02:29Z), 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/TCJPY2342217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b7c3ad35c5f4f82879d5a098ea94af42f5b0354897164cfc6111ef3a8b1da7. 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/TCJPY2342218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d921942e588156614d56a93dc287968c6ddb429cb8ca8e3a8c1f8fa493262a. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:19:17Z), 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/TCJPY2342219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d81b64bdaec8a6871f2bd5de5531cd9d774295373c30bf113cfbccfeccaf85. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:41:50Z), 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/TCJPY2342221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b73855f61ffc6b7b31b18e502656046f012f7d3410a63a6e87987189672813. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCJPY2342224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf671d28831a7b5cc4ee7f8955a16e54a05d3c1e14285a757b9aafd0e686855f4. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCJPY2342225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25c9c75e6b130a045e754520d91065c9f93a56584c90965b1e4153e155647f8. 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/TCJPI2507334.
Real Friends (feat. Masato Hayashi, LUNV LOYAL & dubby bunny)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dec2622cb74524eba0b0318cce2a5882891d7de66d3b82e447bd662b9267e1c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCJPA2401887.