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 0x0daffc29fba2e9fcc093f72fb6aa7ae9299f7c9d0871eacda39828a2cd14fed8. 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/f2dbae07-b67b-4b47-b0c5-ee7b9bd134b0.json and https://artists.proofprofile.net/proofs/artist/f2dbae07-b67b-4b47-b0c5-ee7b9bd134b0.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 0xbfc41bf5d929c72e9b8587d427991b0264a4d40cedc79f83689f0fc92309b5bc. 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/NLS5K2200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e23e85d291364c0a158bcd26990aeb73737e97e07797d96c251ddf23b13617. 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/NLS5K2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696f069b4cc0033f2662ea491d7b9e71962a3ac4c900e79b108cd86b0b7e287a. 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/NLS5K2400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb268dafdfa48ab2da58384c14eccc70c62df578c3718c66f9805c525316d2fe. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLS5K2100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d2487c0f592804a819bc7bb1783fa6db749ae55e7a82afdd26fd9209b16d5d. 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/NLS5K2000134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10fd2c9d9f2f246d0aa0246a9fc3de5a69dfb0213a6f597f309fdba5570663c. 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/TCAHP2383089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5914d9f4560e9caf30b0db19f3d209c5f8f11715538df8df965ba918f5e60248. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NL8RL2443479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe06c2e9eda44abadbe42383e48db3f68443a50cb0a8c87ef61343dfd16046cc9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLS5K2400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18534caaeacef14da3ca5aa700119b01090a2f773f671edfb8ff9b837cfa6122. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLS5K2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e4d14a8c6026d98f96216ceda6102f3b1003ef53e1b899c1fd7ea930020003. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USA2P2404745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018f57da7865f11ce56bae64601e46009ef28241e348291a68d050a332fdbb8b. 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/NLS5K2300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4b3de9f3475aa48302e9c4c31c40c7fed4fcf33bc8872c8cfa13305880249a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLS5K2300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4436754d4256f3f6f4b3d34a607a7d9db1da898782f88869134fe0e10c6a58d. 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/NLS5K2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7afecf3fd3ec7e4817f77365ae815e400d3944139227441f92164d68d4a602ee. 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/NLS5K2200054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab912900af6f49c7ecd7c8dd06e59c3a723bda9c3ccff9850718ad67a211779. 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/NLS5K2200042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9ca2944949175f75e6a4eb6db1887527a96853c68bf379c46485404c619773. 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/NLS5K2200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb54baa9ba99debc8a0f258d3916399f23cf9667d999271992deffd2c7ca8082. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/NLS5K2200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e81cb40d0a312cd1cbcd5bdd2a64b94bc81652743f94b25c82b2031a36747e. 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/NLS5K2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09046672442db1dc645d0d3c7725209a17ca1828605e13ee29f6f707fd27bef. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/NLS5K2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c6274f419ba40b6b4ea5f64b7ff07db35dcfed987372616b67e602c4d0ff1e. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/NLS5K2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8c90c5c6f7d55936177fd475594754bca2b11ac703332a1eb65cc97da93f6b. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/NLS5K2100085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82012ba2bab21a0a3bd78f7165ad5bc731b1b51def6beddc4e9864157730139. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLS5K2100081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3188dd4c12e97569c1c248dcedf0c4f75f9c71fa799231034bef5946615745. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLS5K2100059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc23fa9b2137faf66bdcc7fc05c534487997d47ce9d5f45d90b2e88649a48bf. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLS5K2100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9150ac9141cebcc1c3a8d64b999c78cc996ad743fc857558ca39814fbe8ae9f. 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/NLS5K2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc91148e72ff41b531cf6ac29be130f74a5d14a5923c006a6639deef61882e8. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/NLS5K2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d72139a537933a04ccc71cded89701444631146161adb77bb68884b2b89abe. 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/NLS5K2000145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde43b6b9875fcde36a8cacae26bb5429a3149ed1b1ca89f14fc827d40e39fc1c. 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/NLS5K2000118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f82aa536bca2866a3fc70660136552b28a631bc5860370cb90d3a6c917ff628. 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/QZFYZ2071097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2875b8b4f0c05fb6a20ecfb6805f355876ed3ffec546183eef2aa1b4553a316. 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/QZDA71987464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115030d4e859ad9fbd5d921e405ea501cd3831998b2cff8ec2bfb99aaf7211a4. 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/QZZ7S2403868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a07e13c0212c57de99faccdab28e6a2f077865db4c9b10b4711514dedf263c. 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/QZZ7S2403869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e002a204b816af7302976416061449017daa7737da06d02c7cb5ebcb2b1f30a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NL8RL2438941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ba7540c2f230afd2941b62bdc81f5b10c8f3dc6e38a7b5b56db33e2b615205. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/QZZ772493284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c50e797f9da7b249bb37b4b3bfd0775eee19a4e78727e5202da59f8cf7678bc. 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/NL8RL2437830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bfbae724b8ed9173c2cccd83bff9f0f5095440d6c1c61666a5618f137b3b945. 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/QZZ7S2403870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1fddbbdece207f20a2fe8c5bfff4ef1f5a6ed1e5bb1b8a0955f6d965ab1dba5. 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/QZZ7S2403871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b915ba00991c2e9aa18223d0d9db0fc2f61a06795e9ec949163ee36f12ff72. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/NL8RL2443477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61abd2d0d04282c345f02de62a8b3111e90a262f1c5962b7a8199357edfba5c3. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/NL8RL2424713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c85ad051c2f34060a500664eb2400c59d1509f14e52490ec8b18e52f238d25. 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/QZZ7S2403872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85750db31353c9f92bb09f61e2041f8149550df4d6a500d8615711f8736a778e. 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/QZZ7S2403873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9f51f3eadbcf3fea519774de5668472f86191c865ab78ff2c0304b5cdaa51c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NL8RL2430134.