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 0x38932c7a163391ac04d0fab348f4f3a7acde8338c9d76a2c78a4fd3c55b031d5. 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/67cc272e-8412-4321-ba98-4b61bf722d1b.json and https://artists.proofprofile.net/proofs/artist/67cc272e-8412-4321-ba98-4b61bf722d1b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fairy Night (feat. 大野雄二 & Sonia Rosa) [DJ TARO Remix]
Fairy Night (feat. Yuji Ohno & Sonia Rosa) [DJ TARO Remix]
CITY FUNK -Twilight- mixed by DJ TARO of Rhythm & Groove (DJ MIX)
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 0xc3ba45fb5080f8c8cfad32e4936be2fcce9bfff9fd2be81dd22d94556a16a228. 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/TCJPA2445096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c310575818b98d6e5c67992a443e714649d0c849e671be215a8308015c1273. 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/TCJPA2445103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176e5b671dfbcdc2436103c441769eabd77e7e7f4b1ca0788e17d46f248b619c. 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/TCJPA2445122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a0d19673024249fcc27820e4c98c0fac71bce2964e643094c1ec097866461d. 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/TCJPA2445131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cdacb3f1d7caabdb6e674e53198c15b14286a1d4f91065dfe24ac5c367c6bf1. 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/TCJPA2445152.
Sparkle - HALFBY innn HAWAII EDIT - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7036426bb588bae077448257e6de78aefef8da47e976726f6988e4c864822c. 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/TCJPA2445160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b5e8abdef7356f032df824bfa9d16e64809163b30de784c1c5545bb94276b1. 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/TCJPA2445174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d063d9b0fb17cf38b69f7fb3752b41a86b9615e738bf17d37bc585b056b7dac. 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/TCJPA2445197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188e0d5ef9027322301735b236a9bb5960661958b45bdc808bb33496750616d0. 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/TCJPA2445226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48c7debf5e8d7744ff667d726c9794af597bd064e567dc17a4119fb05f59bee. 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/TCJPA2445730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f4f9ef7455383c78a6034682abc1edabbc6c0eb60988267b812b051321a5d7. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TCJPA2445745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172faccbbb5a325b94fdb83b97ec0971a15e1b74e7677f5b8dc6506458999b7a. 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/TCJPA2445756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8129a5f50638c04b3771035d1816e3196be757a6f20f863b2933211f5434ee7b. 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/TCJPA2445759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f9e236dc5bfab215469840d65fd36026095427c14f4f6b507e384af043d3573. 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/TCJPA2445764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176e5b671dfbcdc2436103c441769eabd77e7e7f4b1ca0788e17d46f248b619c. 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/TCJPA2445122.
Sunset - 2019 Y.Nakamura Remastering - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc8e582b4dc28a7196381d1a1bf5e23573e02536203774f19ec564d844e491d8. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/TCJPA2445710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856927b5cd273dafcb0c0fc0329fe02428f04de3acc24754ebacad0f9c98ca7f. 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/CAHQJ2488519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92642e5a04ffe8ffab5650c9338601a4d9c040e5323a8c5ff1e3f597f011123e. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/JPU901202005.
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 0x6a5b62f6ff3491ac8af92d8dee4d3a8956293e4a80fd482d76fb4812d7523e9d. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/JPU900301344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97cdf82125c1018ee3f284cae72d3a34972436e6afcc50d29f0eec82dc987eb1. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/JPU900401122.