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 0xaa00afc419c6696238b2f22968a4ac0a75781fc82d69f7ba2813abdfea7a8668. 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/5b0102d0-555a-4e2a-862f-4b82479fabec.json and https://artists.proofprofile.net/proofs/artist/5b0102d0-555a-4e2a-862f-4b82479fabec.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 0xe125b37d5b908a3b9f80e92bcbe998622a82031cbb485c0bcdf7c7e5f7898b96. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPS809912971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55a129afc1d059046fcd95e8eacc9e49deabff5f2a75d184953a7ff69d57815a. 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/JPS809912974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38c052d3b7964b8066f228bd632b0c2c9a7a6c8f04a82418cf759a3b7b1e985. 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/JPS809912975.
Welcome To Tokyo - Shibuya OIRAN Re-Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69635b232f0b791bb69e2d544855e6b06194baccba45a4c9ff6b94ad1e6c4b55. 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/JPS809912976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc819a25ded3eb993eef72fc72584f9d5b9e2e0d1f5c49451986da60a3220ef0. 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/JPS809912977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d63a3b642c28d10d6369dc7555215fca8788c54fe11de297a8492a3fe0ad6c6. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/JPS809912978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8859a31d8b99aca61467ad47191fb7a608a4458e68cb7ae6654b8c86204f67b9. 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/JPS809912979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d64ea95173d385e5284a2b244f0b93bdbe82dc377b3676bbf812210522d8cf3. 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/JPS809912985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8324750864adaede55006ad9f149b5ed9fc06221dbb0db2342975305b4976ea. 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/JPS809912986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e65fc562898224c82e741f4b4d066e6678e65183f22852b2af9bab4903f5878. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:03:59Z), 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/JPS809912972.
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 0x4ffc5b7a28dae9f959ed4f359aac12f30f27aa7b8f4d9aa1470012118edee845. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/JPS809912973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe640442c95c58061e757e42470d9e6c0ef45f1e526c00b416b23d5aeda946245. 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/JPS809912980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4beb2059be31abfd0514769310233cbdc35c9a8be73a2011ce692041184bd783. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/JPS809912981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbcce2e0ffc7fb625efe39cbe22e821e0d4f62fb5960f9304482200a38a3f803. 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/JPS809912982.
君とRAVE (DJ Shimamura feat. NO+CHIN Remix)
君とRAVE - (DJ Shimamura feat. NO+CHIN Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e09563becda917c46a4c7838969fbaf072b9638fa1da1314e8a712b5d98fa4. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:56:36Z), 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/JPS809919336.
Cyberpunk 2077: Radio, Vol. 3 (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b80e13f62bbec6f25b7cc7791c9cb8c529ff6087181b42ff4e8d2dfa830f7d5. 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/USLS52085305.
Cyberpunk 2077: Radio, Vol. 2 (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b570c149afa0eb5433a682c6c5b3c89928650ca90ba8ddb91475439ddfb33d. 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/USLS52081701.