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 0xd218a2d70074b64501a9738fe3f7bd2b74c932342a6ac542ce7cf5490e731ea4. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/08ffe4c5-0d59-4986-9db7-b7498acb6096.json and https://artists.proofprofile.net/proofs/artist/08ffe4c5-0d59-4986-9db7-b7498acb6096.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ogon Syndrome (From "Umineko no Nakukoroni")
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 0xd43ea1c40386330970dc903dc1155221db64fad122e2d0e52654842184080612. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TCJPB1431124.
Goldist [Umineko No Nakukoroni / Ogonmusou]
OGON Musokyoku Konjiki no Chi ni Somaru maeni (feat. Nei Kino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629bc2aaaa7cfc41a5f37d858becb5e727d813d84412fc3aa942049dd71a047a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCJPH1823232.
Kina no Kaori Ai no Siren (feat. Nei Kino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe433f25ebf6ea09d42ae9b8a6bf3984befd43618e4bc87fb72abdbb51ee79689. Chain 2 (Bitcoin): anchored in block 957702 (2026-07-12T12:25:41Z), 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/TCJPH1823238.
Dear Golden Witch -Umineko Sounds by Luck Ganriki- [Umineko No Nakukoroni / Ogonmusou]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d334b3fc1a288e9b06a923d8bad5062243d8318608ec0a6e1a3c5ab128e346. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCJPA1472406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59e281cdaf147d3c7194e03c7114af78b7d54d6adf4936bc15f3d4e79bd5e7f. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/TCJPA1472409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d97081ef3a90a7c90e782eac2896aaa16c3fb506e52fcaaa48ed9e5814151c. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TCJPA1472410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd9275fb4b155216612b06e92299a21b5037609985eb280ff35049008f3c54f. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/TCJPA1472413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d12e1ea789793528a1dc9d3bcf50bf224a58d45a0056b214a7c525ee9a508b7. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/TCJPA1472414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c970f6245012c267cedf5775ac9385545e22d0f5eb8972856f5ae40023d25d. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/TCJPA1472416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38671ef7f83fbd466d8e1db5a6983b6ac892a7a92c513a936be1ffdd67240e00. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCJPA1472417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa28e9518a06ea8aedf5655838a222b1d6cbaf24b9f0b4117c78ee3060479bc7. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCJPA1472420.
Birth of a new witch (Game size) (feat. Zakuro Motoki)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe335806d4528f1f019fa54642aa628f119407947365730d3187e477e6bd639b6. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:03:22Z), 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/TCJPA1472423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c651ae0ecd0c6826cba190b923445ed5ed026e583da6db9b560cf2b0db3d32. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/TCJPA1472462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a26e08df6f1e8302b4779fbca7d42f59088fb3f778ffa07ca52c36b509b0bbd. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:07:02Z), 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/TCJPA1472464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0dbf1e15bdbcb537bc7970a982a68c097ba45c53432c6de803726f1ce1e8540. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCJPA1472465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8647dfdadd44a51375cd873f2f24443ef650e719e9e043ac2ced4dda466e9f2. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCJPA1472467.
ROSE GUNS DAYS Sound Tracks1 (From "ROSE GUNS DAYS")