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 0x952c439c72c2b39d89f5fa36bf3276525c9a39e0e57e61be289b216b9057ef55. 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/b7caea0b-09cd-4c16-b55e-7eafd0204519.json and https://artists.proofprofile.net/proofs/artist/b7caea0b-09cd-4c16-b55e-7eafd0204519.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 0x3304f2a842d916c5dc8e3d06d136202d52383849cd4d7dcd2081b2444b61a2fb. 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/TCJPX2385505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6c9d960132ea1d6eae7c865a5b749dea29c85e472ee95c72a13e33b4386330. 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/TCJPX2385511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb1be6b1365d4b1bf8074852d20dc4fd1679ff56d2f49f628ec3e1b67c7c9a1. 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/TCJPB2407337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3adc5b1625c2446cffb765a02babefa21d8716674b0414853ebda20ef893c9be. 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/TCJPB2407339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e595da892c12042082c94f6f04c684a18618b8d4a6f337083e8b255a44a477. 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/JPWP02100476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498abb0cbc015948fadba29eb325bf53349e7185fa8487ce6570a69c8240e46f. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/JPS801837969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19ceb1f48eeae6c464da31f3df2e6c28ccb9fa907a73f932943c014fd64ca5a6. 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/TCJPH1877070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c2664fec80c51ced0b1373bd9b889b04624f2919efc12490bf05bf7c1933f7. 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/TCJPH1877072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e82a3dd89fbcb73a2c7a4a46cfae10666f23f9d8d597fca2a92b4beb6df876. 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/TCJPH1877073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ddad6b303147c06ddf789848982d583aa5850faf58e47206e2ffa81b153f3b4. 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/JPS809919488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1098d5e7dc48936381decc90a2d6241ad3eff742b71834a02cf43d868c490f06. 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/JPS809919495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda67afcdac80787e2ee78a0359deb6cc76074851971fd888bf86074e17427fef. 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/JPS809915041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ff055d94b0bf18f880a6c5968066c426f4550c7564ff6d6f5291a9515c971d. 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/JPS809915042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667d7568da41c384cfe81bf94c1b15436e6d60a1544ddf12486e94f6628e37d2. 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/JPS809915044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf9742af62920f4114a0ab0e24763cdef092f907ab3154af71784a3094d12d95. 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/JPS809915045.
Jinmenusagi feat. Jinmenusagi, Jinmenusagi & Jinmenusagi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43aca2ceb6617e794785efc325088225e47e63dd2bd06fa377f391b902d82072. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:57:32Z), 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/JPS801393678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ff8e8407f4a0e65aa5ce5d770b5d56204a85c3a241c7a820a55b1060cab618. 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/JPPO02403262.
SAKURABA (feat. Bonbero, Tade Dust & Kraftykid) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc726d91d7a9e7c3c28dbf846701a7896298ef5897b87ee20b0aa6d4526835694. 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/QZHN42288199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6e5afa29ccf4c18fb777e9b71210ab03397cf8908e6c0c7c9dd1ac2637f3c0. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T18:55:24Z), 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/JPU902101858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd4aad39b2b710c86e39b98b4780c8c23b4925b647a19b1f5e25ea9a7b2f3c70. 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/TCJPP2113871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da546b1c53d46438095c743b8f9c05d70c081fe5acf949b9297842c402b761a. 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/TCJPO2141976.