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 0xe0347545bdf44b3a95239e1dfac2497c5cfdb3a00f5fbe42ccc43616f375f03e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/263f0cb3-ba4d-46b3-bf33-d2e631679311.json and https://artists.proofprofile.net/proofs/artist/263f0cb3-ba4d-46b3-bf33-d2e631679311.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 0xf583f271c92c63496faf647b2154b4db8dabe30b6c6151276190a4c92e24a3b8. 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/NLRD51952727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000e0eedffbbde12a167bbfaa961e7428df6a379d2badff7f0795e0b5e3f7382. 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/NLRD51952536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93ff7bc65ffc50fedc2c2d71a593665eac92d0753ad2d38964a18254a31420b. 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/QMEZE1860530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43e21d1bf77e569f5cdbd0e213c661d1224acc912ada925043ca7f096f38213. 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/NLRD51952728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac8bb8f76dad308ef86013946437fcac1f119de673d432935e97cd1eb94375f. 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/NLRD51952729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b672e4930a1461064530c1a87c152527a966ce8b36ed9d9e2eb97735d19d74f. 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/NLRD51952730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98218a28444e0c3da115b5540a8f50a031d56e24a46bc6def804ae992a992604. 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/NLRD51952731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba709105e255edb5ccd861bc8e486987ab5f763da69907c58ae59e8ca1007b62. 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/QZVEM2349696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd945a85f7653550e5efec59afe5185c9664ce2b2c383dac3bbb53a40baa64f. 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/QZVEM2322107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ad0d39b8f4414255214da0b7f8058ce537a5f56f0efcde9e6b216cacf12570. 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/TLREW2219972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9542b2096d2bb783f2d2f8ae25b162e6b211d04ae6457953d80d1945c4a0bc9. 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/TLREW2208557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7fcd7d53c79a4283a685a83d0308342f741572ed4f82edeb31a3505ac0d4c39. 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/QM7282190075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf583f271c92c63496faf647b2154b4db8dabe30b6c6151276190a4c92e24a3b8. 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/NLRD51952727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf944c557875dfd1ca0d7de6dec01ac74869b8fe5526579a505cb69afed1582f. 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/NLRD51952647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22c28fc37d4140a57ef982611afe862eee573b3751f4e55374d2851987a6ec7. 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/NLRD51952630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000e0eedffbbde12a167bbfaa961e7428df6a379d2badff7f0795e0b5e3f7382. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/NLRD51952536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93ff7bc65ffc50fedc2c2d71a593665eac92d0753ad2d38964a18254a31420b. 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/QMEZE1860530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8909e887fd142b0c64cb642572bf33cfa8f7e4901cf15053f49134fe003b616a. 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/QM24S1835221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118bef349e86761cd9b946881d707452daa9fd96efaf2e17473c95be2e152cd7. 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/QM24S1816018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e12f1c4c704ecea7f54a008f5d5f53040318efeedb6dd27e4365c45b9c19d23. 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/QM24S2203592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5a8a4b56d890aff1d54db2e945e71bd06c45ecc5ded72d47a3f83451f341cb. 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/QZTAT2141450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9bdd853fee36a5985a75e6a728e7c873d412862ffb4c40bcef08576ade2919e. 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/QM24S2203590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25642654be7074695327291904d2b29e5bdd0e8d13d05f248b0926e28e47143. 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/QZHN32223143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3306179e51292470eb89e66c9f225011f2e5530fd97c7091be12e2aee371f9c. 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/QM24S2202813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd4e8ee9426011d7137b70dcb772ece1b6df4ff9952455a230c8c0c6d98d9098. 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/QM24S2203589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3306179e51292470eb89e66c9f225011f2e5530fd97c7091be12e2aee371f9c. 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/QM24S2202813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c0dfee7677fc6b8e9f944f424e678a52f572f03fb32987df8315fb6f311e2b. 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/US38W2549702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2a6f9586ab5c0c0344a328aef91a807d149ce42da78c8d3311f76456551209. 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/US38W2449601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f7abba62b3bb82726c67e4d1f9f699f7505612a934da8773acbf90bef311e0. 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/US38W2449602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b267923627163230148954be7f68355d016f7963bc82f46ec7c065adc1e33b6. 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/US38W2449603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17fe9fd42ebdab0414b79427cc7cda46aa5a9873d010f3c2f3d05367c8417c5. 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/US38W2449604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc639f722f2d52473ecf912f1dc60df432381ccb397fc0b6b12105cd189adf8a9. 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/QZDA52386680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c8c8e1cb70d09e45293caff2394efa5f3cc1386d219f82498de3980dbabfe4. 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/QZK6M2283660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc5c9bfb0d701feda35ce1d4386f199bb5aa7d0e020bbfd45e18e3741c3e8c1. 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/QZDA72199800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3806213fcbfb4bdc2d442f044d0cddc66ba8833108b930e33b5cf534b3f83e9. 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/QZFYZ2112420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f24df25c4e655e78a5bdf1dc08224233b608e7c8cc08f26fdc34e48fa1bc6b. 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/QZHNB2244714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d9d19cea4414b18cffbc34b5cb75a8bf88a947a3771a3e04cd116c8fd77630. 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/QZDA52386681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6b18490d36ce33e84d1256cec7e6fa17f9153a8f103aaedadcc1dff0b70250. 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/QZDA52386682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43c11495c2b7100cd48ce43ef5f2ca03079c5d3f059164857cafeb70fc0cae2. 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/QZES62184768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717115015ccbbce78f64944c4f61433ffb966199da7910a3a596abe2520cf95d. 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/QZDA52386683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ab2a36e4ba26d541ee7851749454e83056816ed12c6bbcc956713202956deb. 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/QZFZ22287957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734fa8aa418947c34c803ebc704211dfb388a269266ec927d33581173a810fb1. 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/QZES62211811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c69bf97f903e579955a33423ec5b281069538f8be41271ffd6583653046461. 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/QZDA52386684.