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 0x1adde263d8080d61daf0fbf782b654ce441cc38ea420a5951c2a195a90ddde92. 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/066fbb95-7a34-4443-b67c-00443cdc137e.json and https://artists.proofprofile.net/proofs/artist/066fbb95-7a34-4443-b67c-00443cdc137e.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 0x7ad7921d07d1ebdb40721c1423e326893e7793479d4afff3b1d09ffd257b8e3c. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/ES77G1300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4dc1163e090861fbe9f029ab1a9da4a56e8c017da5dab611b0dd713fa0fb8e8. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/ES77G1300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489fef1c6ff021abc61cdaeda3ea995628c778b1f865aea2ea9655e2ece11479. 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/ES77G1300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb633a538622de15d6c6b283eb2901f893ff557153d1a806a857d9f3cf6189f85. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:09:01Z), 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/QMFMF1480358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92bf3fc13b719c3850ba33dcda5b04e39066c7dda700ac48df2429a8a43132c2. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/ES7001620801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d1dc75b4eca119782affcfde7bed96651352a023fd24bf37973e3609394604. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/ES7001620802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e948d06d3be20ff7a1263dbbc5aabfe54843bcb5f27b43b31062a366dd8faaa. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/ES7001620803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f4de81ce0d5157c40e2e73a4fed52da97d1c716fe99b9fbd11af0b002ee130. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/ES7001620804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c50e20349cd8ac9c6e82b702151014eb2c24b29e91777a4939c72ef4d689e1a. 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/ES7001620805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd3910d78ed853c4868e10f052f436f044cc36d96891b6511fbee91504eb6453. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/ES7001620808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81299ebc9fd05813071f3cc32ed681de211d6aa199044d41710b8e01e21de7d. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ES7001620809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3f7d8b232998ebd44fde8b78e35c72b07a2a77eee7518e1abd9dcda77a14d5. 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/ES7001620811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56e852e5d80555a4443f96cf7ec2cbfb9fe167f9a48ecb14431ad8049cf63c5. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/ES66S1700090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81d9d96d7e03c75179715e1c0a263cd6670365d83715d0679f1e025b203ae5f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ES66S1700021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385de53d99876e085d822aeed6dff72a4eb65b92806f5b346f1a84883f6f71f7. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ES66S1700095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aaaaa7b6c9af12f232685355833f7ba4370eb6b3d3fb0d5b6aaf9d09bb9c39e. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:07:41Z), 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/ES94B2000075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbad119925e31dd982e6e5ec04e45accfac3f59a5d331203caca86a06003391d. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/ES94B2000071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033fc7c00d1a09555862643ff2f54ab7e81db761752ba7adac3769a716a7bf2b. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T06:30:23Z), 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/ES94B2000072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x720e0cb5079fce3a4cf27caf7757f4b95d126ec1f725c800e29af1772b8f57c1. 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/ES94B2000069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a3997fbfdbfb1748b973aa5605dc6ccbf51ad790e83d0b522c35bbd4d02318. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ES94B2000076.
Profile Anxiety (Crystal Fighters Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeca9fb05a4f4c7be0945d9f2ba62139ea31d0a11af090a74e15745f22eb350e. 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/ES94B2000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7deb2e5ac9d2624c1dc8615274f8ec107264d330e2ca10174f90c4ec882240c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES94B2000070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2b7cfd1988a9faa68b3bf9640eaf9c11f5d870c7c8655008d709fa4ca9ca97. 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/ES94B2100250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe933cee2e2481cc008b38b6fe86274528a23035e93c3576daa8a625871d7adb2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES94B2100261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f506b58384cc1b75e61809ea48939b44670a4fcd2fbd96ce032ab76d6a06169. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES94B2100260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d2aa90da522bc4587d4e13f3e024f2d24f9a2c2a4837f9ddc15db938038115. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ES94B2300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf158432a646d014897440276bb09caca889e35c2be42d3e5e992ff4ab8efcddd. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/ES94B2300042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ebc79df744ef1d1ff58df1d05e43ca257d93f18a5a65a1c38f8211883ff2c8e. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:33:43Z), 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/ES94B2300043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x879abb8e57d1e21ab573e73580c27694e3356f55633efb8ae7891d78c48b5f7a. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/ES94B2300044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3bbb3c66c102ce1ab86d07febcfa5a0bff134fbeca2e80bcb6b424e2260770a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ES94B2300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe90755f78452b3f225351c91f3a3e7746c6d79ddbbeaa22464aabd67f20997. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ES94B2300047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275ef99b4596d0740f6239fa3044c2a146e27921d8edaf041e3c02bc3e85c3a6. 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/ES09S2100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275ef99b4596d0740f6239fa3044c2a146e27921d8edaf041e3c02bc3e85c3a6. 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/ES09S2100012.