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 0x0bf5f0d784e2e1bf7e2772c217c40c524184ca96a9db7722906e451c79d1d5eb. 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/e9e953eb-7e6a-44ae-aa6b-cd76bd59b049.json and https://artists.proofprofile.net/proofs/artist/e9e953eb-7e6a-44ae-aa6b-cd76bd59b049.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nijamaina Drakshavalli Vaatsalyapoornuda
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 0xfe77d81ad643e184bc783d8897ccb43180a495af11d9f8cc373cae86d3b84aab. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZMEM2366635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8be14fad7978a592fb20bb8c2676e4395e0f6d4c8f231ff75b6210cfac0fc0. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZMEM2366636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74818e96dbf268dc50eed497db1dc4be9622a2fcfc1e1b4ee3cf8e5afb494a3d. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZMEM2366638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d661b2ac382a6c8bc2783e7e5a9957f661d937ea8ec1ecc614bb9454a604848. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/QZMEM2366639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70b70c9753dc9739b01c1a5457db935c0e4139cb8867d26c6898f2bcf7c6e65. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QZMER2309171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ecdce45e381eb693d1ae0a097aebff3138141c47f11f7597224f88dbed1fa7e. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZMER2309173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb3a6be425f7e8c8057240a52a747b3150e718dd7f2f1b2c83e8d69730b50f8. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/QZNWU2330930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa082546504c2df39779ce712fe464bfeb698e6f27f23e12075f32de41afddd. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/QZNWU2333839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1dab5a4ca395910d370ba546a6cd305a286a39667a069b02912c17ce5d508f. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QZNWU2329771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d75370fa55fe890b136408e2292061937d02b9824688af2d553004d9d259a3. Chain 2 (Bitcoin): anchored in block 958602 (2026-07-18T19:28:16Z), 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/QZK6Q2326713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d75370fa55fe890b136408e2292061937d02b9824688af2d553004d9d259a3. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/QZK6Q2326713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb67e8439d222593cec5388ea92f96dfc794d8b8b882c0da6f45508b0a141c937. 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/QZK6Q2326720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f4163098db5d94ae5b0bca91b7b9c5760edd4809de414ad9069655a0b11fca. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZK6Q2326730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74e2bbecb12c24e247a9444abda55a234a89044d5c46b036242c0fbc55e7f19. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZK6Q2326719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74e2bbecb12c24e247a9444abda55a234a89044d5c46b036242c0fbc55e7f19. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZK6Q2326719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01312f4b0798190358f849afffa3d96e044be0a540dbb667d270844eba71453b. 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/QZNWU2329773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e59817ec9bc9cab2facb7f6de16d99ae2d94ff034aaa70132fd5651314f878. 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/QZK6Q2326716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2423c25f213d98de38795811b755d984cba7b7088f484991a66edef6e6660151. 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/QZK6M2338887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6cb08bc3ae0adeb1d6a869762684baf4d0fcd69bd35facf22d4a5997ba1d2a. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QZK6J2320941.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7d96d74df2995e1fd9d120a3bbf30e7657a96254988962f1f5cf0dd66dc8a6. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/INA2W2401022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6007253b5decc18c3656db55a56aef288260f2b57408109462676eef70f48c7b. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/INA2W2401016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5390d823fffc9061bd55257ddae4c2f3fb2046d89507b9aad2a6574d26ef9e9e. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/INA2W2401018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc24c599b4479c4744fc6e33a5426724676699553f2a5fdb8b5934a1814522f8. 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/INA2W2402323.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa59a1c7e8f84b5534847eef4f6b2448f588a123b37d1958b600412e34bb557. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/INA2W2402877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55abb7e279af27c96d100517438dcb0d288622ca70674787903717addd1e561c. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/INA2W2403103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31fdd89331a0bd824ce84ef3b1ff2edbf1990d4957a51e9758d289a65ddbb14f. 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/INA2W2403096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047382e9897f890eeac5035d15a964fc4819f1fc67e80961d5b7b1e2b2a80d96. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/INA2W2403709.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0779263bc7f8d07e0cede26a6ecbb0f38009d4c89789f0b07af4a99f3ed6bf47. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/INA2W2501357.