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 0x9f2ef33007ad55fbc7d5f55ab9d222277a570b4b27d256e6e49c452898dcd9b8. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/914b8557-db42-4e42-8a12-56f6d8a09eae.json and https://artists.proofprofile.net/proofs/artist/914b8557-db42-4e42-8a12-56f6d8a09eae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Koko De Iki Wo Shite - Tokyo Revengers (Lo-Fi Hip Hop)
Kataware Doki - Your Name (LoFi Hip Hop)
Fireworks Festival - Weathering With You (LoFi Hip Hop)
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 0xd7a372189936638dbc8040c852b770a43455a3571a6c37808b2c814115762f09. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZFYZ2271310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b09a0c3b9e3a9f485ab8193f95c3f5a6cd6da2dd1a5d02da3866a865649ba3b. 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/QZFZ32288646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x736a93bdaa1e30e3fb58c1b37efca654e07950fc9f542cdb6f786a318ad7c1cb. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZHNB2254497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x189cfce9350f8c2bdd4513a2ff0c985c3b25480edb7c1369f5d3a45fd635ff4d. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZK6K2210350.
Black Rover but it's modified become lofi hop hop
Despair but it's modified become lofi hip hop
Oogway Ascends but it's modified become lofi
Gracefully but it's modified become lofi
Tanjiro no Uta but it's modified become lofi hip hop
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ba3a2077118303afe17bc6b89c3be13895a5ce3be80c27901bd3e8baa8be45. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZK6F2223236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb159cf306b544d9c20874010fc146e238c752026c901c04d0cb75078f8517cb4. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZK6F2222678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b93fc5336f29fcaeaec35ac20292cab5b5720185db0015dffac4506bda536a. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:35:20Z), 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/QZMER2240618.
tada koe hitotsu but it's modified become lofi hip hop
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73277a0c4203bd74bded006dd754f50313d09afd8ade335efd67d4d9be0cb1e4. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZNWU2277892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab3125679cd1441975fcd6fd1b29c4a6437622a10600d1ab64dfffffe45b51f. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:29:42Z), 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/QZTB52267192.
White Noise but it's modified lofi hip hop
Kizutsu Kedo Aishiteru but it's lofi hip hop
Riko in the Aquarium but it's lofi hip hop
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003d66228f7b82b6b1ab422d5bc105e1904e82b5e6b0d14783ac407c1c28dcd9. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:27:33Z), 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/QZTAW2333897.
Raise but it's modified become lofi hip hop
To the infinity castle but it's lofi hip hop
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d7bb41bac5cd625ff98eb7bf6d8876e7fac512bb997bae71f68e1437beb4ed. 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/QZZ7Q2405431.
Here With Me but it’s chill instrumental
Dancing with Your Ghost but it's chill instrumental
Do you think you could love me but it's chill instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26dff537b513dcb77fc4ecc03ec2f3866e30e29d5a2548f9bcb2bd5c7188e6b4. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QZNWS2547154.
Back to Friends but it’s chill instrumental
Chu, Tayousei. - Chainsaw Man (Lofi Remix)
Chainsaw Man but its lofi album (by Jembei)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c27fb715fb1e08cccc0f722a4575fcc59d1505c430f75c344695afb6062b9b8. 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/USANG2263975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1cdb650eaf0d93187d6e467d2141a7efcd2d8cff3bff0fee816587f1d6406da. 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/UKZGC2202121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabcf6ba23ca932b22198cbd8ffb216cd737e6d0d4ee779ebd21e63ff1db5ec30. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/UKZGC2202118.
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 0x23876d40cb06328e4b267425619b1eee7cf224bb56221835d0e18c953f27c5a2. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/UKZGC2202119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddeb8ed36a1cb014d704924378ff932b7029831f27bb5ed6e1cd3144eba66f60. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/UKZGC2202120.