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 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 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 0xd7a372189936638dbc8040c852b770a43455a3571a6c37808b2c814115762f09. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZFYZ2271310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b09a0c3b9e3a9f485ab8193f95c3f5a6cd6da2dd1a5d02da3866a865649ba3b. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/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.
Black Rover but it's modified become lofi hop hop
Despair but it's modified become lofi hip hop
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.
Oogway Ascends but it's modified become lofi
Tanjiro no Uta but it's modified become lofi hip hop
Gracefully but it's modified become lofi
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 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 0xa5b93fc5336f29fcaeaec35ac20292cab5b5720185db0015dffac4506bda536a. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/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 (2026-07-21T09:04:56Z), 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/QZTB52267192.
White Noise but it's modified lofi hip hop
Kizutsu Kedo Aishiteru but it's lofi hip hop
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x573ece16ae155a0a332d82c76b83ff9e3f06c417c6029c46444882336cc14a24. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/QZMEM2313635.
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 (2026-07-16T02:46:47Z), 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/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 0x5c15e21345e99ad37f7e41c703dd48a6fe34f9cb20aa92bd74063b004fe33913. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/QZTBD2426746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d7bb41bac5cd625ff98eb7bf6d8876e7fac512bb997bae71f68e1437beb4ed. 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/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 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/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 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/USANG2263975.
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.
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.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1cdb650eaf0d93187d6e467d2141a7efcd2d8cff3bff0fee816587f1d6406da. 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/UKZGC2202121.