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 0x8c96e4bb5ace4c5ce242b03892a20bcec52af79f6b2d8b62acf9cc866ed5a8c6. 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/154c850c-95ab-4dee-8ae0-3839606eb9b2.json and https://artists.proofprofile.net/proofs/artist/154c850c-95ab-4dee-8ae0-3839606eb9b2.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 0xb6488ddda8e923f3df046de77e346e038cb6bc47f9132dd0df5e3895f1cc08bb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZTAX2236345.
End Of Daze (with EARTHGANG & JID feat. Jurdan Bryant, Mereba & Hollywood JB)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x714829c2992d01592a19bb2866cfb9c02c8490ccb4284cb2d372ffd63dee4155. 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/USUM72010366.
Shiva (with JID & EARTHGANG feat. Benji. & Jurdan Bryant)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ac9703ede0b2b7903f8caa18376abb35bb8e1b50786cfcbbbf9f81705f620e. 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/USUM72017775.
Oshun (with EARTHGANG & 6LACK feat. Jurdan Bryant)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb63b847a633c711be9c9d8760cc539b5ab8c1f171916c14f4cbd4244abafad7. 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/USUM72017768.
Jupiter (with Mereba & JID feat. EARTHGANG, Jurdan Bryant, Hollywood JB & Benji.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd24f27a5f7f917766aa957e1747f0791b10ef303148dc804835780df1f78b9. 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/USUM72017770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4dfce2e1ec1be0b1377118dbc5098c39f93bc38f79c5afd79b432eaf0c220fd. 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/QZHN52251718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3744a5a540bb56f832003ae1cc086c7551a50cd51acf8f3d469d1b46a887482. 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/QZHN52251719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524764e60d2cee909014d07d79e7d54a4d011c37af494409802587ba51a9cff1. 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/QZHN52251720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9e43e13694aead0ee6ecc4f1eb5eadccd829257050929172d2719990ce62fc. 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/QZHN52251721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76bddaefa22327f97b4a2aaeb010f0cbcb6a6f1812e4bd3cbb0874c0adbb5de. 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/QZWFG2370973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ee5d007d399522a748bd1cf9ebd79e0e42e69565e9689e6ef51d3cbbba3f56. 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/USUM72017765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d5b067840de16da4c2483354044e485e5d93e9d63cfe947a0a5bcd7136c7bf. 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/USUM72017772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624aba67007f38e61d6869ad09f8f16ed6c60bce36a5ed407e8008f3d9288259. 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/USUM72010783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1fbe9ceca0dff718af2e69cf0135e727cd4a450f04a6bb8c314b8ec019e864. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZHN52251722.
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 0x14a23ca18d3066f5913fd2402e49b559d918cb4ed6e284cb862868c551a478d8. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/QZHN52251723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd77121398e5cd9c733076b3cd288970686f4ae00c75b70848b98dee7b9296877. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZHN52251724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9193562a7849e3bf99f7df84be3c10ab102ce2d0874da00ff136be32c9fe43ee. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QZWFG2370974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e274cafdbac6c8d4c0e56743650f8665bbef1303674f690e603512bb4bee9f1. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QZWFG2370975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9a597b4fffd1c605fd291da5def01e88f9754ae9b71a832b5a8a540b3be6c9. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/QZWFG2370976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83aab7429757017536d51d24b5b43dc488b91f4fde45a535daa59bd59d4f61c2. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/QZNWX2287503.