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 0xb3edef1a3876cb37b0c6e4050a6dfd97600672fb3886b95d41da40fa1e5e410a. 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/96e0a3fb-0bed-4dfc-ac1f-d19327c57514.json and https://artists.proofprofile.net/proofs/artist/96e0a3fb-0bed-4dfc-ac1f-d19327c57514.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 0xff5554e0618eaf3f18b5673d0b22f75cff4c7b42b393e25602d3df2ba029b22b. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/NLK780400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e98e54f289cbd7b7a6c6688937bb5dcf643e40c65f8c7d1fb72bf821525c1c. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/NLK780400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ff2c659448a04f408c0ca5021c40a4738a3f6c5f924cf44df7632b9514f20a. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/NLK780400063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb190ecb5cb0c69c8291d27cb517268d02fdd41e248682af84981cf612be60fc4. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NLK780400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d2d675730c071c66a41196b71125dd02b7c15fdb3af8114b8a379b6071de83. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/NLK780400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b3efec00196c61efef16169766d1d388954907de369a00b5a761bafabd7b6e. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/NLK780400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a3564f193112e4d05fd1389af1ee630ac4de6b199999c57ea88f9d75154f73. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/NLK780400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665e5c7a262f0b993656cf9f0a233b037d26848187d323d34770e6c7fe6356b5. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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/NLK780400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d962f33e77ee9a6ff77149f7d136d08d39337c6e4b44130ff3a1da7ffd252a. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/NLK780400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c91ac0e4c1c49f6a0156dd7094e69976824044b2b3b3feb9e7175e7d70531f. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/NLK780400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66edaaa957742c965f42b76cea18ef7ed13b8389202d015dd5e9b8c76a5512b8. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:02:58Z), 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/NLK780400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c5e0a6ae6b471e641ab4e3c4e162620570c4ffaf1f73b21df149138bd3e1d4f. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/NLK780400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3961bc5f0421e31c9742033b55b99fd342649c16d8b20afa5848187387ec06. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/NLK780400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb378db9c41adf74ef269b9d9520be0e010051d3f44cd97a3318eb163dd38ddef. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/NLK780400042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf51b648d24a4cdce6ca5576878dd3dc169623a0ad5391404c480f11f64ee103. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/NLK780400043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a1d1b156c56a84cd9be12433d9d4328936e9498d5e07a3dbed6c75acc03e0e. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T11:04:19Z), 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/NLK780400044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de31ba3a83d137667c2bb80ebb3e119ee68cc184a4c19620002a9287e519fce. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/NLK780400047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x558746f8b3b77858eb5a43c078f63cd8dc60238baaaf7070263de9aa1898af46. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/NLK780500039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14c6d6cc2eeb91914a88b12abddf5a0658b308294d63e0976f5eb9bf4436fc6. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/NLK780500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8cc05cbbb49b793e5d71c081b13c8481dad2d36575fa435121e8328f2e82ab9. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/NLK780500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38656136596c2ff927a40f2c9ad61e6d72241c4d09f86dfd3174cac14def9fe. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/NLK780500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bdc42f0988ed27249110a532d15d771acbc6ad18e637dc4acdb8434e07132e1. 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/NLK780500036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb575ba411581e8b66d97bde4846ac9441363de74476343ed8e7304aa18b0b3ad. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T17:30:05Z), 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/NLK780500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b1b769e5a441fbb8d77667b85989ae41d819939c571eeaf5afd7bb58a4ace81. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:05:00Z), 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/NLK780600057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7585c5f8338517d6aada7f960afd829cce80d7a905c85a20ba395418ecba99a6. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NLK780600066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1736a1927aa947ffa86fdd743d39f1af79c88d04cb739e2333371d6c5d03ff8. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/NLK780700088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed041d76c095bc1823b721f8014a9fd63cb9f873f982f6eae6c1655cdb467f14. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/NLK780700089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7dbb829b82bf12a37810a80f1e6e9bf8d151c42da482b8150d59850ca13fc4. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/NLK780700091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f33741428cea6a16af319ede9f47680e6d2d6f307265b3c208518b3d68d38b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/NLK781400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd32b38843c9e1a980f0d81357775f9429c906db1f98e512368d86239dce58884. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/NLK781400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271b5905afb1ec185ba37f95d142ef4561d170a13bcc8358e176abf2977a4b25. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/NLK781400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae124a5ed150715136468256aa675489e11c71154ca47eab29c8a17396ea565c. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/NLK781400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601ef216f17817327017f49d400e7ff489229b7745ba09ee8844788c4d461e9f. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:19:31Z), 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/NLK781400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x733bf05fa26e47436eb64dfbb909103d2aacb93952777df10bbf37893ef00441. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/NLK781400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x478d24e51a594c5f9495bb946c774e53f181dec4a0eaa9ef968a86dd662fbe53. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/NLK781400018.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aac50b74abf9f5bba07642761130f0597506e78acdd100d4f482182d812795c. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/NLK781700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf0b88862ae484dc3d307fd7e9a329a95ec85a8deb31fd57bb894d106590b51. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/NLK781700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8781b8649b1ebe5e6552f8967a37434bb4d9878ec90e35a1cc03f545256599. 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/NLK780900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122d8f86406a61d95c7a3b646798a05a11eb0d406546f33d2cf4ef9601f0c962. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/NLK780900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a9fa534a46d7bd4709e38b369ab4f6ff1bf8eccbcc58f7de15ca91135c80a10. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/NLK780900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a242167bc00cd39b1d0926e1c9cd5cf70857e1d8f755070aa164a5b308c1ce5. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T04:28:33Z), 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/NLK780900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b1b769e5a441fbb8d77667b85989ae41d819939c571eeaf5afd7bb58a4ace81. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/NLK780600057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x558746f8b3b77858eb5a43c078f63cd8dc60238baaaf7070263de9aa1898af46. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/NLK780500039.