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 0x4adbe9cc8418e02c0a11095b2034f7f447ff31a2adebb6b7bad846afd20515d0. 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/293e9144-afab-4779-abfd-5d68e2c7065d.json and https://artists.proofprofile.net/proofs/artist/293e9144-afab-4779-abfd-5d68e2c7065d.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 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 0xe6aaef3a3a2f24aedd3473ca430dee0787222476019d56e361929014ff4394be. 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/QMFME1998986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad733e62f38d42aee13265820a47f6bb4a28e25843b0c451e31d7a660fe93425. Chain 2 (Bitcoin): anchored in block 958752 (2026-07-19T16:00:28Z), 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/RUA0G1600406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f2f1f7da45b3a8062aed07d4c577af22cd9996491800da9c0ae5b7cb94e677. 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/RUA0G1600408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae1f15dd3e90b7c6472d92f11ce6156491551e4309561f238ff42ced638b5f0. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/RUA0G1600409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6851595f5e0bd95bff96e8bc1ee55b270de1bf66a592acbe3e568d9ceec67192. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/RUA0G1600412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dec02a33437bf4626635032f7d4143bf9c330f163e9daef8f98bb39141b34bd. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/RUA0G1600415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7745dc44919758d200ad7e29e0f3fa1b81fdbb22379d921a0b0f09cdaa69a160. 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/RUA0G1600416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29697cde890a5a59e9967d5394347702075435980c1a10a786ef70f113e3b83. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/RUA0G1600417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ce4829b6e37d4b79e9787a4fb8fff856565b4723e8ba3c41a916bf3b6bffc9. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/RUA0G1600418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e04414e07cbf920a136cd5ab3393ceccae7807d3802f0d6d93c76d141e396d. 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/RUA0G1600419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a36fa2525b364f56a15e899b9873c533e4e8f7f7df94593fbce49d12b7186de. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/RUA0G1600420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5396b7b1296639da711ac57524f2021acb4038dd8b2c8e4bb07c76fed7988b77. 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/RUA0G1600422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb46fc0e68af0f794e278b5cbf0eee9dd28b11d88246db90d7b696ef0102fae0. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/RUA0G1700062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c39de98c0905d839d7e2da5dc3ad4f4a0a33330ef64c3c8fcbcbb292432567c. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/RUA0G1700063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7705cd1eab3efe3c1cf42b91a13cc98047e3c69eb39a311d738d04199419709e. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/RUA0G1700066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422b92d2503a5f4535b3e6868df70ada3cffa9bf179b557cf7b26fb0aa4bd955. 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/RUA0G1700068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07726e464621a4752c632407cd5678c06c13b856f67440706a23267f55ddfdbb. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/RUA0G1700072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b370b5ad478fa1e1509fc3b07843e7513679d94ff017184f60a0fdc50d2377. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/RUA0G1700073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0755ed6d9dbb3e0be81f87438ae5827fd303059c37b294771b26b16f1a58df53. 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/RUA0G1700250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3f8ab54be798f2a2991606c5e5234a8bc893fbd86944f0aad66c4a52e6afab. 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/RUA0G1800205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9fae9b14ce0d492877644d9d798fd52b20a8d7e289b21d7c3d950e2f2fa9f0c. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/FRX202336495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26c70393fd409cdc00ee5e879410bdc3e417e00932da564459e5a0be79d8701. 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/RUA0G1900043.
Когда-нибудь что-нибудь будет как я хочу?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb149e58247b8dc28d9c55f572f3601f6cb4ca1356a90baf263c11619b2316569. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/RUA0G1900044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46699d53bac75b2f6676a09465c85aa6e219d9026b34a5c2d7e193675769b4a7. 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/RUA0G1900046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d353d8d201d232f4ce6f0a29c803b625aedb12f038f198d4af6df6daffdacd. 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/RUA0G1900047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37647104d15d21f284e2fe984d568c09649e084a277581499f14feeac984bfb. 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/RUA0G1900048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f3500ae8ef42b5edf99323ca3206099ba8c60327b139836178ec1d6112d8e3. 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/RUA0G1900049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265134d01a4f4449ce0feec37c02f3fdaaf298d283dd0813f78cbb09d9c55fd7. 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/RUA0G1900051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a706ff2c7e708a1e9771da55e28ac9fcbd93d7d1a7de05e4fd06acc69547b38. 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/QM7282085645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9220f3df62c7b8352742bc23145a3f993d270922122af6d7da8c1efaaf4f0067. 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/QM7282085646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x011084c3acc09e449fa13e50d426846e537e356aad1a6b532615ceff854e3980. 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/QM7282085647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58c6ac4023c1c709802c71720996ab2fabed151b7d41af096bab36d08eecd43. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QM7282085648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe74971e207896383f1b19acfcb5e0598a9075dc20bf730de790983907711e196. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QM7282085649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x956acc164cbe1cdb4dc3e09b49c3e77ec02926e84e65cbb98a35688bb685abd4. 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/QM7282085651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8bf9057ff746531d04e10eea16f2b24524639475d738d79a0e8789dd6d7b044. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/QM7282085652.