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 0xeb3fa98d5b8c7e8ba00f65e88db34cefeec70abda74639b82732b04b1ad52d1b. 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/3506e428-cb40-4b8d-bc77-1388ec42bb1b.json and https://artists.proofprofile.net/proofs/artist/3506e428-cb40-4b8d-bc77-1388ec42bb1b.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 0xedbcb24964bff0bc905df738c371ccbbbc42e2bc9881849b91b1e277069967a7. 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/QZZEB2468430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4282dae09e65ce31c2f86811f370327760d8c77b7611c204f78722fbccb85cb8. 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/QZWDD2374830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8c11af236356944cfc7991a76e212098379c777b2d9493b2bc33659635f891. 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/QM4TW2080179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd621738a98147a2c6dee41b30c1b7ab31e6e97f7f331d674eed81ee73b33e348. 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/QM4TW2086154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e95a8365941ca8c831b1b91631c19a4181dc8446ccd000a4a6c4f4138d5d342. 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/DOA251800574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073aed689ac716d809f6bb9f8cafb365abb3ced5588fdc3fa2e042c5d2ac68af. 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/DOA251800515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161f91993c58e59752242d86ff4172882019cfba901c4dff6d3433d38dde258f. 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/DOA251800403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321b52a6f5cd5ddacbcc7d274629b7b1ede40233c92ea41ef9debaa84ba2e5ac. 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/DOA251800404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0009716a7c0443dc53f5b10bf4d68a282623edd8dec8b783e6dc311f18ba5113. 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/DOA251800405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5812c816734b094bc05d0dbbdaa08aca27144a2e4418e54a1a72d9784a7357ef. 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/DOA251800407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867d0e66d940b004e4b93fd136f1f45e565d4ccea03c6664f013e80c2ca2dd90. 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/DOA251800408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f490c3e2cb3cfda6bffc1094b18ba9c860601b4bae3e39263414a05faa9cad. 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/DOA251800409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e50b34f2bf73d9865681c0437e94aace0e15a221d38989c2ebfa5bc5771f66. 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/DOA251800410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0bf4e4d0159168a2a86f0e6f1d4638b9417230d1a0ccc9bcc359a5c0493fd9. 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/DOA251800412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de34b64d130e97572de3f3697b3526cc317ab1e831fe72fa4cefbb542bfcb8a. 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/DOA251800425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e92a457bbe0abfaef377ecae7d8faa568209c7ae557295164006eddbb882598. 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/DOA251800426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f8ac66d13e08247db48fca1aa6ebbb922c8cca1d3ecdabe7851c05a84e4cc8. 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/DOA251800500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbedc8bd72f4c1ea57baeeda9116aed2feaf4bf89f68c75d1294d4c2c2ddd45. 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/DOA251800502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311a9eccabf9a5002771bd000b6d51fc2c655ebe6d8121d22f6a140fe904c1a5. 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/QM6P41775889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55dbbe1a1471f400aacc4e521c52b53982e1c11444f2e82575b93eb393fa2186. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/US3Z41700091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2496fd151ac83b28fbfcf61787b6466a02b4ebb7958b730190a5987948be2511. 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/US3Z41700092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0529a77ddd514bbb46c4555bac9f578242f9fdd81704e2c8034bd044fea31ad1. 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/US3Z41700094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7223175a2cec06abaadfa7127480e6ec689bc0c810cf5579caea2b5fc7d1552e. 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/US3Z41700095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89808ab70ccb1e61881c34b7e6c28dd073a061ffa56715d28ae623a7d66dda5b. 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/US3Z41700096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1053742dcf4e8a5b3466916f221b5bb465b683e82ca7ba4e45bbc3310d1260d0. 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/US3Z41700097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde73cae23e1b75162a0cfff253924ba78b49592e3089a15f6e72838da24cb77. 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/US3Z41700098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad607fd38ca78da1bbf7a41c2af037ec50fb77997ae2fcf5a4557807d8fd72d. 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/US3Z41700099.
Jamas Te Olvidare (Aka "I Can't Stop Loving You)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5894cf7032ca132d7fa116c1111d5c3d14d3e2b6a3a9544f2dddf0be6bc701d9. 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/US3Z41700100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4c60815428f37572d5c622a0007f83cbb0ae02e8e02d08b9996769af10b99f. 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/US3Z41500193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cb9de9f7f4bcfe1af65fd8a3bc710099b1f040543b0190c900026ad59833f3. 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/US3Z41100252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b205f966afc3035a309e9cf348355abed1a7803c1349a297458e6651c09e1a4. 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/US3Z40600248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b6ac8acef00e6bd2d5c90997cdadd1b8071755ad7fd166b371d3a313260c4e. 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/US3Z40407291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfdfb7b37f5227d7c72fdf3d2a5889b3b741bf61b050be98d8ac681caab83d8a. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/US3Z40407293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4968321fa56090637490577047ff178d4667f21c701255f08b735bac4617e95b. 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/US3Z40407294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91b799db51129bffcf9a2a419cc9ba62e758e4110533ab56d29fef642471b1e. 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/US3Z40407298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867d0e66d940b004e4b93fd136f1f45e565d4ccea03c6664f013e80c2ca2dd90. 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/DOA251800408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5812c816734b094bc05d0dbbdaa08aca27144a2e4418e54a1a72d9784a7357ef. 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/DOA251800407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e50b34f2bf73d9865681c0437e94aace0e15a221d38989c2ebfa5bc5771f66. 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/DOA251800410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4282dae09e65ce31c2f86811f370327760d8c77b7611c204f78722fbccb85cb8. 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/QZWDD2374830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e5e55b0d08cde9a6734a072dac592c88f2a32f586676c3fec13915894eebe3. 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/QZL432200047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1cfd58ca6a1d05446c5341ddc2a9f98892f1aa2ad46354040e8bd0344382d5a. 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/USSD11900079.
Amor Enterrado - Live From MetLife Stadium
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a56863d7aac1b4810569d6d60b08851410b62758a908112fa14cf3dc7e8b77. 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/USSD12100219.