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 0x69495542af945727052632b69c1aa95cdbf97b7700b147f8197594ec68c8b0b5. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5598d419-b061-439b-b410-d6b0e0bd562a.json and https://artists.proofprofile.net/proofs/artist/5598d419-b061-439b-b410-d6b0e0bd562a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sciolist (feat. Kyle Anderson (the Afterimage)]
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 0xdebff997199b5b798984fde31de4345c6b2c374595c9de78188bf6010ac5db3d. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T07:21:40Z), 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/USCGH1308803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb8e06945202c0e8d69d16b9f4563eacb3c11d58253cff59dd48f3335d37c8b. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/USCGH1308805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d175e27c8e917986f6eb84f58bee06b5a4f0eefc89927450fbdb6d75927817. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/USKO11500484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fdfeb5a85e5b9e9da0f5dbb234627024e4074fa1152d4cb07ce4c6f137686bc. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/USKO11500486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefbeebee22e5700bab93c55099036ea9661a2e6453fd346ce3064afc14fcc15d. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/USKO11500487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe564677225be43266aea7faa3940817b262492d536c69d7ada46c9101cb81ef9. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USKO11600739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7883f2a69d532eb9b7da46994c13f53c0f76d16d0734cd3ed972c401e0f88c9a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USKO11600740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584e458a70c9061048702674713c9936edeb68449cd9be2ddbc34d44019a6eb2. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/USKO11600741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a9012acdd64d3b46f90ae939407f45444f2fd7cf598394302dda0b20031cc9. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/USKO11600742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa52bad6e3b9e877a7e6568c5125108d124e6e6dc27c8bd59d88ef88c8eb03d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USKO11600746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37df56db1e697b90d51e9a8e59964e03e0a177a8075eaa7e5c955c0d9cd8c27f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USKO11600747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e87d14a119f0c10bea6bb3a16ec5d8d422bd02771e16900e4fa5f6e7a14c55a. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USKO11600748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95dc74b0b889c2f3c01d09e220e236ac5f21018e32649ade107307ad8bd34207. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/USKO11900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6899ad0550c93c2c180bbccad57002a89a88fc3a858154afa5eeaa90548d606a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USKO11900031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f0018dfe1111c79805379f58a55f5cc23b6441e98d653a7b503b026a346df8. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/USKO11900032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70516692836d25280b3e53b859a64b569581c1c04f9b984888b05f558aa126ac. 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/USKO11900033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb283055d23743004b22511f6c5f1672e3479f12b167f0dbc8fc5bdf8dd216a3. 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/USKO11900034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb57035d45baeac34b208ea33906c439930174a6a99b285deb1fb00bceebb3d09. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/USKO11900035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2104c1ed7674ec221af4a28e086b120b5946a6a028082f55a5ea64190764e02. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/USKO11900036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8589fb9f2f46243d5cf97070db418ff8b518915d7179b487d9b06faa6b95e63e. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/USKO11900037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe43e16802c915b6be3847419d38eaa6cfb1da41daf680b1da41678ccbcbc36e5. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USKO11900038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d428f5fc97d5879a7db115a3c6a8cd615f7d65829d0c99b1ca3ae6b42491d0. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/USKO11900039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5a1ecf8c70609d1529e4fe9a0e3ef0f3645dbe035759fd550d04be1e508d0e. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/USHM82332913.