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 0xf919bbd77a88e2d9b3e6f8ec4dfa4f78d6dab059852901caa182f73bf4101ea3. Chain 2 (Bitcoin): anchored in block 953819 (2026-06-15T18:31:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ffcc0112-f992-4763-81e8-dc339c4dad2d.json and https://artists.proofprofile.net/proofs/artist/ffcc0112-f992-4763-81e8-dc339c4dad2d.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 0xe3c8216e34f80feb9476ebe17ac937e8efda1670e12c33ce9780edb9546a6d53. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/QZDQH2516647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e610308fe28c684fe846707b6196b629e8ebadf3035bbac8315b30027b3fa7. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZDQH2516648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492c5d6dd295bc2432d1841c215ce1e214845d7d9e49e88939c1dedcd8386b3d. 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/QZDQH2516649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0431d655041f8278ab1ae68bf633c867b89c121a00568cb1f1d617e6af2041e. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZDQH2516650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f41d3c3d8afaec7e6d6effec0fd780a6eb59975b3e093eaeae3aad899ee61e. 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/QZDQH2516652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff60587ba4f01cc1286fa1a9785c8c720cf0f4e7895bef0c17c573e2aeb2afe4. 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/QZDQH2516653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc92166ac3bf74aea62420d5f2d8a6aed1911911deaa5aea58ff1df81646ff5. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZDQH2516654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98fc53422b5376983c3df3e81a937e98c64c36469894b13f2b9fa9b176c86ec2. 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/QZDQH2516655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9a85f430b290f261e0aeb3a2aa8545949e6aaefcec6612206184bd7acf1a924. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZDQH2516656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3374bf0ad4b332794b3e6bc61173723ffdd611ed71a6d757fd5d5616286e97. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/QZDQH2516657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6bbbacc75529390bf76aed60aef2eacbb93374f49d5aa64b2505040c678d4bb. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZDQH2516658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ced07994251accb27b9f2047bce47af8350e322543edb4590dfdb5b98fbbfa. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZDQH2516659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65cec92593acf6391043c44f911caaec9cf36927d8ff14115fad39b1f57fdda. 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/QZDQH2516663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9be1b5d1f5c576a42b6cc2baaa991cf9faa7cc25ebf5bed255ec9616f511cf0. 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/QZDQH2516666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c63872717701f66f46b90f41528b7496ae1adc8e60e2018daffb825b0df4e90. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZDQH2516667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5edf6738e9cce2c2d0e0faf1505e6c59f9d7c4757ae45d20b5dbe6080cb8de4. 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/QZDQH2516668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf69d497c0c43e1e328187630599796916779b0c4a01126e2c707165f33f0f16. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZDQH2516670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f3a10056cb25cace8afc896775925f41ef59489caed88a2aded24346ad686e. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZDQH2516671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2a5a9231eebf0946f93013e05527d62a7ad73dfdc3bd5214678084cf9f9c1a. 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/QMFMF2565313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a0c1c885e2449a34ef6f52116acea8fb0f00eb655e822a583d75832836b478. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/QMFMF2565339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6fadde05a6962639f40b20ecb0828ef5206717ec77bace19a33bbc513d4a38f. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/QMFMF2565406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd451c2bf5d3cedb2a35b3ff0e95fc0d434bf41587faa70fa563962fa35a8b384. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QMFMF2565623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x889094eea83e7bb7e4ba82b166123962d100836acbd6fc10f58793b08e7bfb14. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QMFMF2565603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd84fba05ee136cb34d4bf98839b2fed5a2de65f0bf2a89ca0bcdad286163b5. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QMFMF2565632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b31ea3437e9ecb5969120dfdcd3f35324957c5648f9a96ad102fdffe3e72814. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/QMFMF2565661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b74b4185043fa14df323bb18d3efb621d92a806a97b5a6d0422286cb0e0e2e. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QMFMF2565638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b652e626d7b115ea5a08f1c3de0c3735e40a40cc65b18b9386f7cd8e8a4ce6. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QMFMF2531306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa376ec0dd5bb8df296ab01c9990fc6aa01aef5e63aa77d7f2eaac7bb9241353. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/QMFMF2565520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7616f79d5d93956cffefb2b99a2d06406c8f9912db945ef001583a2525e29a2a. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QMFMF2565498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5564cd79421909973915cc4f1d930583bb58ef752f98bcdda5262bed86dda902. 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/QMFMF2565450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0abb2ff636f44e4ac6c4552047cbc606da55f561d9b962a021686a71d4ee7bc. 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/QMFMF2565528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b7757881a7f62cc3446e17a2ce18908b247b319ec97ae0f7979e6b21036984. 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/QMFMF2565517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e42195dde9442e23b5d7833f28078908afd8691546ff454b98fbbad287cd6c. 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/QMFMF2565462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b37e1dd61dff61b17dfa59f9936d045a49d99e46ff3d838e8886ef20fc91caa. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QMFMF2565508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3915d28c328dcc38ffd98c27d7e9ce6177df9454a356ae4675e3156e8c74da4. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QMFMF2565440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e7d6970716c7f27399fc685e930ba6b5baa4ed22725ebeff1ca4978237243a. 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/QMFMF2565468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48bd352de76536c879599cdffa14ae9de55c1ba28c390d4f74a98b4fa1532d06. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QMFMF2565442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8c22acedf5356a9e1aef6b5d3c123e0ab53fba3e04a21b82117ede893a512a. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QMFMF2565588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3069db7de722d94da0c6762bb95220bf22cb5e5bd260ec3987bf731393cecdf0. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/QMFMF2565579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed365f89cb68fbff7c5374c28ca34e8fbb34188a2f7d79fa066240c01670fe2. 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/QMFMF2565565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0600475d4d5daa98badd6d5c993bd072638de2483b9349c72119c6a9614640. 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/QMFMF2565557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x869db8213e7ef9dc67f928c1a4147642f53faea9850634b0e38df1a2abb10c22. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/QMFMF2565549.