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 0x148054fca72216cade483f8f4d59d9cc2dc1ccefcce8e5edca461b4fd7d746fc. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bf8f4fc9-5c16-4d48-b59f-17f50161234b.json and https://artists.proofprofile.net/proofs/artist/bf8f4fc9-5c16-4d48-b59f-17f50161234b.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 0x10322ecccbff931a952fc4dd6ecddd2342e6cb500a2a3573094cbeb864f3b33d. 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/QZK6L2280003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4b996265002d3188498d326a2ee833bb8b53da7be605d406539ca780ff5005. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/QZK6L2280004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9411728bb9f5bca446e5c5cf3ff5703a6cfda52315a0e482ee767bf5bbdb938e. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZK6L2280005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115a9ae249a211f002354a54e0229f701cb187a4e49bf24c5a7036adb946ec77. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZK6L2280006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312041a0e957dbd15fc4505e1236025b709beb838608bbcce860cfe8b281862f. 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/QZK6L2280007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696acf07a6428accc73add0d5f2589ae1b2b4fc96ff88c6daf056a8926aee365. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZK6L2280008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb72a3638cd8690a4f974861ff4b8287e0257b7c4ffcd5338e8213478521510d. 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/QZK6L2280012.
Twelve Gauge Facial Reconstructive Surgery
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4691c6b960d5b2112ad7a3e6a8ea2773da3166bf3b34ad7d996d08c3667116. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/UKXN21933585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82262202fa99cb44a106860f6d929cf73fab7799590a5a73f02644376ac9e89. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/UKXN21933586.
Masticating the Fermented Flesh of Putrified Cadavers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce7847cd6b7f781c26a87ce604c1d82da9fbefac23f89a698336dd2dc4aefbd6. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/UKXN21933588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8cf9587ac4501d0917c05071bfb72b9a5da4cad9e87caadc811391b1802d4da. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/UKXN21933590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420ae3a5b5c0592cc4bf0042a630979cab59c572bd4a3c57ec1f396513c14382. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/UKXN21933592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ac103a9fc713078bbf6fad6a51b1cb6cdf24bad8c0eb9187abc139d2b1e06c. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/UKXN21933598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee1c5458503488d1f906b429c131acdfb4c39aeff4eb342f2cf43c3f97b3678. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/UKXN21933606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf805c788831184b911fad1d27edb9f81e9e876b299868d3cd12a77769f2815fb. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/UKXN21933608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad9b948ed87487e12d80ccff71bb92435f6d49d7f2df48c72271b8a76eb2d77. 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/USY251779321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38fbd85d9d6343741589a36a03827bc72be8ddc3491471d41d65bc61135b4d00. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/USCGH1973871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d96a722b843dc408087a6bf02b673e6125369c8bcd0e7cd980a1cb0bf3398d4. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USHM81840538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d0c0ae510d8d9ad68cb7143c9c7151573cf3f8bd58a6b0b9c9d2fe78d3f491. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZZ7R2464278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9ca5c2134a7e01f809acd371693a7a859b9907782e72501624582285096817. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZZ7R2464279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e78160eb03376030fa5753caaf519f9d66c1b1ed9c9b40778a14165646506ef. 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/QZZ7R2464280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96da13cf77a7c6bf2ac14dc345b5f2f3f78b67310587b5e51f70b58ead9b46ae. 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/QZZ7R2464281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753024351b9bee3371c17372d97a8601d049b603ed2bb73b58cfaee1a906a69e. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZZ7R2464282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb621b649e713cd6aad578829c6f83020dc6b81628024dbd01b23a7f09d3514a. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZZ7R2464283.
Self Evisceration Through Spectral Possession
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725e1cf607b7a2176a8b19ca1d065f3041e39c412cfa613e522843ea5c3a8ff3. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/QZZ7R2464284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ae01549df09378bcbd755eb280582334fe0c83c0b5e8281f24378e41afdac8. 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/QZZ7R2464285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6f817ff9893e09567e34faea3a4c38ad12c4cb2ced81e56b1c75fdf92b45d6. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/QZZ7R2464286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6816fc2c81a78554daa5430f3abff30bbda9430072e742ebe3700117e0f6383b. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZZ7R2464287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ddd6d234d23364d78ede543b55ca7b576a773ff8df60c4d062b71962efbd5d. 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/QZZ7R2464288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x532baa98394c4e7bcddded7f8bfdaa1b737c23b950450e40d3a8d0ec677f228e. 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/QZHNA2504666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10386b0146ef1d2d8fb5a0aea79d0c6b282e28fba2d599ce2318b94547191023. 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/QZHNA2504667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e68b864ec24331aef5388bb0d526bca36041640abab82b649db57007b2e9de5. 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/QZHNA2504668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302840792a6d2d218f1487994e0b550687489690a86869d6cd8997cfa0d285de. 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/QZHNA2504669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793e3d2c13a97d39bbb15d65d17c692420da1048d801af810c0eb6f1d099f5df. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/QZHNA2504670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f5450545ad4b4632fa85e42d33fbc68d1ec203b56b02d52131dd4ef7cc40cf. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZHNA2504671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9222e177fa17423bf208ee9d55a525d6930d85751abee3cf97ea7a25b6284e99. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/QZHNA2504672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b07d65a7fdb0f2f2a689b3bb36fa0233ffadb6502ed22694db4a6996bbaf9c. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/QZHNA2504673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9349696724ed9beb4e66ceb75f68ae8e0bf061c4a8405f5d1c0b5306fd0b1ad1. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QZHNA2504674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7678afdc153526c87cc724e28d5545f608eb482a61c28f56831e06f1bc30b965. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/QZHNA2504675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1fe53fc40e76ff7fc13c976d85f1f202836113fdde5beea695f9ad4b7b9a363. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QZHNA2504676.