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 0x523991bea8f07f4469e01a3adc3fbb433dd3fe61509de65b06395536677a1872. 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/b47853c7-f02e-4b0c-9760-fb64caf1fe70.json and https://artists.proofprofile.net/proofs/artist/b47853c7-f02e-4b0c-9760-fb64caf1fe70.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 0x98a52cf7b6fa4147f39bf857a1d604b545e3a23826f97902d0d49a0ab661a41e. 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/JPB602178239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15a060ed41f784e4cfdfba272998845e618280fd0e58cd9f843f329cbca5e89d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/JPB602178250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb462b68c05f175923b4d277ac56c603297614873c6dddfe58b2bfa59573d40ff. 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/TCJPW2385004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551d5773faadecff8f5aaf9d75623b21e0874248c061c938f79d41cb6caafa01. 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/TCJPW2385005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd3e1cdae319f3e02fc3b66cea7a18d2db4602d04593eae3619d2b751811ef4. 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/TCJPK2063414.
Reason (feat. Honda Hitoshi & 906 / Nine-O-Six)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a51a43bc50d14abed79e61f54ea73b24d4e8d5cf703f040d92334dc91344d22. 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/JPG102300242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb160d46ed76812136f0a6306dfa8fbfee25e0cca65832ccf2c006959caad5583. 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/JPG102200969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2526cfc2ad0df6db9d4eae9196599cad716fbcbf9fbab4b954fbe2512af2e10e. 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/TCJPN2029742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0375830cc79678d8127ecffd553c99e058fecdb49580d5d92e07fe17eaf4785. 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/TCJPN2029755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5bde2d47ed6954ffd3c4d710829d5bc257ba82bf3822f36e1009983cbebffb. 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/TCJPZ2495386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73287abb62e133e3cce61562718254e324f70e554273abb447007a334d108988. 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/JP92J2401529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3b22d8c079e6c24d951dc15ed60e6d44ef90cacb63215ec289c1934dfbb4a1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:30:02Z), 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/JP92J2401530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996d82b6b1fe7939a111d47384d974135cf9e52438a26f18765d42aa04cb0897. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JP92J2401531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255295812e69762a614f6340ea7c09f556ca4c43dcf4241dc31a16a2fa04672b. 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/JP92J2401532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52a6fba35c248de92f03b744ffb2d673f46a34eb64e7beb73ec5a91ef114a22. 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/JP92J2401533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff77b6627865c3f2958f7fee2d474017f87c9698b211bfb8948a959c32c6804. 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/JP92J2401535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f4c2e47532b1144d41ae893b024c723dacadb621090b02c837671f9d668084. 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/JP92J2401536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3914daab447f0cf6a9acede20a4490e231dc8cfd44b34365b77eddfb9ec8d2ae. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T17:03:11Z), 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/JP92J2401537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6c52252e8b354799fde47ee33311be675196b6a3d076643a1810e9678d5a38. 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/JP92J2401538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25ddafde57933347a2a48f607d564a81606409aea8dd727da57372cbeae2aae. 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/TCJPA2401551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab2bc57dacb648a7089f889e688de65bba96b4433edc8c18794041e99b92947. 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/TCJPA2401568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b3318da1f1d11592c45f2bf6592e0a337834436bc10fc3ab0ca0b6ff967c1b. 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/QZNWY2065672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd757374cb08acd80e12946288f0af86f005f6eb3b286cf5962aa03a5a70da64f. 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/JPS801850556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff1eb0f21ea23f940a18a44f69f31b176ae25dfe4fada5478291bb064314661. 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/JPS801850557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10115487ea6120167a86869cffc605f196f09a4802395223f3b2ccb13584f3a6. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPS801850564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b79c0cf9a4065c3b3d8f3e0ec8fc44017415a7807914aa5d54eff52dff15cd. 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/TCJPY2331507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1785099d5a1005afbddcb9ad9512f7e9a8ce00adf77694086aa1dc4d45ba1c5b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TCJPV2350961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86092ba4670495797a35a8c3fc98df1822c14484aa590af4db401883d36f0504. 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/TCJPO2190959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65e2f53f4709410ebaf7259d060f57cb7dda9651c8be5a8f4161811bccc214c6. 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/TCJPN2036987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b4ba9ce4a3a90d7d5884f16b6529916eaea5ce282d3224d6c546d755c63038. 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/JPB601888169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3804c442325b45051cdaeeb2f14b50a04e85f142b480037e21f19f2c439c913c. 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/TCJPH1891635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9daa74fa9640d6dcd32069375fec40d6a0d621ff0ba2a56e418a3978cd03d7e. 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/JPH492500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b68bf64b437298d310044c13ca7f21149943f3179b1c724264893f69a9f934. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCJPD2559085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8ed102fee26b19b57965c59b43adc47d17c767916f802b71ad01d6042bc55c. 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/JPH492500001.