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 0x4d28b28e58f01dcf68c87a7414a1e6693a3e0eaa0dd61bca2645779e13c21e4b. 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/ba7706a0-4c5a-4d6e-a39b-f9bf2d1e76cc.json and https://artists.proofprofile.net/proofs/artist/ba7706a0-4c5a-4d6e-a39b-f9bf2d1e76cc.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 0x9f7325fce4ccbb2bfef94514e2f53a3fc8a05adeafcf804c4139f43557cdc348. 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/MYA110400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971e1999b46e6a22aba938e107361f98e5dc8f55b06439e09a8bab00a376dcd6. 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/MYA112300335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b45528011a630000fd06ec159ef364c9000757f674297f3466a9c79c40d4560. 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/MYA119100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeed6f887e6d77e26eb0608891031ee8b620c928b95f3a644855e866615aa790. 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/MYA119500071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bca6bd2d006699903ed41cf1ab5614b32d1718340d094933dd1155ea904532c. 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/MYA119200063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd830c38f2382d37ee1869ae3d8470726b4e287a5e911cb56834376eb6cf1ecba. 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/MYA119100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4317c7dd0826c039c117c90e76f8290c25854fc60a81bcf6216ee034c187c6. 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/MYA119300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0ab0cc11e964d122265bb06df7c78c48f2228700d6125e38d064ef3fa04696. 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/MYA119400079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7325fce4ccbb2bfef94514e2f53a3fc8a05adeafcf804c4139f43557cdc348. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/MYA110400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36bc495903d05d31dac9f08e34fbc0316878dae8264fc9186aa97fff11b135a5. 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/MYA119100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7178f72797090f034da65364905359200481dd74058891f9591a1ca5ebec77d6. 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/MYA119100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a77f07bbe68aa53e1d0f8a41b05bb7f538095df26fa3a98d397e1037656704. 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/MYA119400170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd45a7054ffa1c1c8b4cf3dcb12d764321251fd38d269606b94e2c24f793482e. 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/MYA119500074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eda3cf09f18fee2d90cb31258961112b6a4205af9d80b0119b2691b74a137e8. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/MYA110400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d24b3ce6b506f7370fc79345743d8e8467396f144bf352f8436a66e5f2887f. 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/MYA119100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a8bb34236d0abe3fbe830f2f9a43d751e4e2164a24cfa744cbb89bab5ffdf8. 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/MYA119100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf20a42186a435bf0e9354efb21db99dd53d22f3e862ea0e6e3e713a7e70644a. 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/MYA119400074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4330773cfbc7a1a1e85613944d34932e84fdc44bafb729a9499b94523c7f612. 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/MYA119400078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa74d728f74b704a1321422b9cf87cfebe5bb8004e0688a5fafab8ab57ee1185. 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/MYA119500078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a00df303220c421e4f2531cebb4573e8920c6eead20520df97311e4dd056d3c. 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/MYA119100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb227f69adafc8df4ad59e0b18eeb058ee2282793955b1aa527abe9541e93ed12. 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/MYA110400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb76b2ab69b5f7a2fd3cd329261e45e48c89a709c2a2e6017cba2059139461cc. 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/MYA119500076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba44817a88d1c754da2e23001564e543d76ac35ea6b920fb353d2256b7511ea. 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/MYA119500081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36bc495903d05d31dac9f08e34fbc0316878dae8264fc9186aa97fff11b135a5. 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/MYA119100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7178f72797090f034da65364905359200481dd74058891f9591a1ca5ebec77d6. 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/MYA119100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d24b3ce6b506f7370fc79345743d8e8467396f144bf352f8436a66e5f2887f. 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/MYA119100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a00df303220c421e4f2531cebb4573e8920c6eead20520df97311e4dd056d3c. 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/MYA119100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd830c38f2382d37ee1869ae3d8470726b4e287a5e911cb56834376eb6cf1ecba. 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/MYA119100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a8bb34236d0abe3fbe830f2f9a43d751e4e2164a24cfa744cbb89bab5ffdf8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/MYA119100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b45528011a630000fd06ec159ef364c9000757f674297f3466a9c79c40d4560. 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/MYA119100020.
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