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 0x0841f6316274236c066d2468ef37b55cd7eb073aaec12f689b98a9ff530dcbb1. 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/b7b0adac-ca4b-48b5-ae08-6be4d9c96a79.json and https://artists.proofprofile.net/proofs/artist/b7b0adac-ca4b-48b5-ae08-6be4d9c96a79.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
My Type (feat. Weny Dacillo & Young Dalu)
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 0xd82174eda350eaadf05c97b700f596fa709e7fcae0766197835fae6a52095caf. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T03:50:56Z), 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/TCJPG1899629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54bed3d0202cff54cc59eb65e141fc012d7647032b4c30d200a5f269338b8db6. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/TCJPG1899634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82174eda350eaadf05c97b700f596fa709e7fcae0766197835fae6a52095caf. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCJPG1899629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54bed3d0202cff54cc59eb65e141fc012d7647032b4c30d200a5f269338b8db6. 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/TCJPG1899634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x588bda7fd81de53d7a69b52a7e6e765f8c3d2f2424610f2b34286ab8b3fd2531. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCJPG1899641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6392ca191611c3502f5258a7e9ceb1277439bbb9435e4b6aee86f2938095e46. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:23:17Z), 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/TCJPI1826803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6392ca191611c3502f5258a7e9ceb1277439bbb9435e4b6aee86f2938095e46. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/TCJPI1826803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a0e32c33d040d8fac00ba8323a99ca3ab9244896bd310ae6677a160f9e1a03. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/TCJPK1924498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2042efdb8b02215249040e2902560930d80fcdf669651dfde36790bbab0c7999. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:41:26Z), 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/TCJPK1924501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5b29e45b407efd91eeeda8abf59e123e1d5b03af3315bd48411af6415851d0. 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/TCJPK1924502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b72e712003e95d6d3e602fdef85b1b0fe39ff6410132dfe9b9aaca2f0ffac4. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/TCJPK1924504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47fb94129ead4a627d4d984c8109c379774d128320a2d3ad4ea63a6b01c29c19. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCJPK1924505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bd9d26ce0a451b68b2852c29283403a7dc7b6b08f7368cb6b70c19f24bbeaa. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/TCJPK1924506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a0e32c33d040d8fac00ba8323a99ca3ab9244896bd310ae6677a160f9e1a03. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:52:27Z), 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/TCJPK1924498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1eb3a18fc2f5042a15a9b1554a30f0e490f694967cb26ef4716a3f1722fbfae. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/TCJPK1924499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bd9d26ce0a451b68b2852c29283403a7dc7b6b08f7368cb6b70c19f24bbeaa. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TCJPK1924506.
Jitsuryoku (feat. Leon Fanourakis & ralph)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f7b5ca8b6f0f96539b69df4db258c2730e0d17c103369a57b68f05af68fddf. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:00:18Z), 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/TCJPQ2138465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a0b37892a26c8e188464a98ccc2111c59d092ad7ae6f85039d50cab32b1886. 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/TCJPR2279865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb577afdef8cb24e799f45fe30d282fd80ce33c4b8a103c94a2039fb33c75825b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCJPR2286797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1adf7087fdfd549934824a3c4a3bae8f3c2cb7e1495af72752ef0c401eb6df3. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/TCJPR2286801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e5308eca24a9b96921f7b104a73748c73644f1e587e3776f64ec98ed324780e. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TCJPR2286803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e06534a96b539d127862136412ae50b149f71bfd984908bfe9cb8cce6f65953. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCJPR2286808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ba4547cfa48ba17c9ed20fff0e9bcf2f3f1255033baa67005054cbf2e08c8f. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/TCJPR2286823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58bffe607ed3bb36a36823537f55cae16bcb72abc637a8740ee42e83051f4233. 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/TCJPR2286796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564c48317bed3e14a6268614955aa6a28fd42415f270f82aafa57ecadea069c5. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/TCJPR2286824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b94474ce77db770023f4c4131d964804dbff1d72bd6c143f14e071279743768. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:45:00Z), 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/TCJPT2289395.
Suicide (feat. Tiji Jojo, Hideyoshi & Jin Dogg) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51a1366e678cf54821272fa4a1b729b342299d75a8b295771513bcaf3245539. 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/TCJPN2184416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26103cf643b4483082dab9d56ba74196bedb7cc962c89729deff37475653973. 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/JPX602100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x923be226ece3828d630fb1e40d57a8516ca19712756bc036cec3c08cc9ba61e4. 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/TCJPQ2148168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51a1366e678cf54821272fa4a1b729b342299d75a8b295771513bcaf3245539. 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/TCJPN2184416.
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.
Innocence (feat. Hideyoshi, Only U & (sic) boy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0bb0fba5cba4cc0e7096a25fa5b5a601b392485860e8a9b5a49e28fff90cb3c. 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/TCJPN2021926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d72627481215d458ae5ce9ca9b8d3386349724f2dbecee00c92c2e3ea988bdf. 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/TCJPR2275753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f60527aa0308790ea60fc51956820960a6e6abc814702e365a612eb1e3f9e9b. 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/AUNCC2200005.
Syutokousoku (feat. Yvng Patra & Hideyoshi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7696a26c6ef43e3823eaf03567d1b7dd33210d843ffd31f3e1f8a416776d54a. 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/TCJPG2522424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f3efef3d5c6956a0cd426169d713b85a8bb232517cc1ecfcd4108764a3ae6e. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:19:46Z), 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/TCJPW2398020.
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 0xe30669bd7eba20c229e1f8cdd36259418f373ce37bcde5ea3a4a003e4bb4bf04. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/JPX972202008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28273d04da8bc4ffb0de0b52fbcd13a36df0642c3c0999303d11d7809584240. Chain 2 (Bitcoin): anchored in block 960223 (2026-07-30T07:51:46Z), 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/JPV501800574.