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 0x9d5d7bb6cf34eccba3d7cc02d9791417882ae0ed6e1a41776e091ef7813202ff. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/83c46661-d9aa-4faa-893c-472eed6b7c38.json and https://artists.proofprofile.net/proofs/artist/83c46661-d9aa-4faa-893c-472eed6b7c38.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 0x413478463dca6dfef6fc4370d91a547b1c10dc0e41c141e68d046f99b04f1858. 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/US4NA1110065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65702f557bd7504d0f340f0c3d8cc17707ffd59f58ff9ecdf11a549a6e6a0fd2. 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/US4NA1110066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a7dc2e2080201dc2975aa74c9852d4253a0e62a847a91bc1f7fc5b6ca01521. 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/US4NA1110067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96811ea76f4cae3f0b743ea8064c3fa8664ed56ceba81c92753d0cc6a7215345. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/US4NA1110068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dbd837b900337cb3b8422751787dd8cad434e2a96dcfcb0408bd7f1f323d878. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/US4NA1110069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af1b74c3cc5706f6008f1262700d54f83eb8ac784935b720ced0cc3b7d407a9. 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/US4NA1110070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b4d3b44bf8c12c7e45890ab1d326c99ff04e94343774b62778914126c16493. 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/US4NA1110071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x390c93c2ad4a072c944114267e6103d5a9a75bcca3ce4f83067239aac624f7e4. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/US4NA1110072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c23369908251095e132a85544b233627321ad3320c3ce22126f01738fbd207e. 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/US4NA1110073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4819ca53bbc034f36dc1c3ecad274322b724594f872e8aaa459f3ca19d3965c0. 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/US4NA1110074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe792dbe474b94fe1122b441c2370cebf4f1c48e8baae88ec795de96fde0fecf1. 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/US4NA1110075.
Hold It Back / Reverse Engineering Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3879465009c668a8c4b5d69385f3124871989652671fbe10af9a5ed19c125cdb. 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/US4NA1110052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd02d791ebfab305cb44fb783e90bf69833f4a961faf36863d1f1fb5e03a1e5. 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/US4NA1110054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524c3ad82b68e907485234db56100b0d0b8d83b2a2c6ca1943838e9c4518c3e9. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/US4NA1110049.
Bios Fear feat Kemal & Rob Data - Kemal & Skynet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96c3df15b12f21e7ab9f735bc975a7aac53a930d5fab47118d4e518086730a51. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/US4NA1110048.
Spider Monkey Feat Shimon - Cause 4 Concern Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb335ed9d7bebdb324206c0d41885fcd624098ff3a0b37904cbbc7bc2686df40f. 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/US4NA1110044.
Altitude Feat Friction - Fierce & RymeTyme Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0320ccbef51fda4d130b3cfdc204a5e4100655b06e8165fe868fd747bc012e45. 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/US4NA1110045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f1ba8ac8210182c3fac3d1b92eec31535726fbdb05011862f29ab7330e10c3. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/US4NA1110038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f12545a06de96f3ff56b71d658d9a8bf237d6c3999717ce591f2fe8f30c2ef1. 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/US4NA1110039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892f11e552f90aa78a9f737e51b44c295c9c2078864d2dccdeb14d784bf1b7b8. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/US4NA1110099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce55b6e3eab0dd0720788973759cf1a90377a6fe20b4457786a7d0f03aebe7a. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/US4NA1110102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7a95e5eae6f7502e811c532436d135f56d625238f075a85cfc5a22eec4c49a. 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/US4NA1110103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe35169d61233decbb1158bca2264933822b1a83d7d32774eb782959916c772bb. 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/GBQXF0030019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f3ce4acf791716b3091d38882dd32723daa2c4918e564aefd0821f2dfa79b4. 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/GBQXF0030020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9584c4b00895b989d1460398c8f82b6ffacbac5121d331da7b448bba1380e8. 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/GBQXF0030021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f71d775b18d6cb91c6e2f595a5ca0924dde85b743e1fa80fb7f69dbfa579054. 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/GBQXF0030022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d15e8f08b61892188ebcdd85db4085793027a8ec346dc70f0ec8760322c41bf. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/US4NA1110173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd6dfa28011db65e64c72ad59b2a6442d03508a3f198d34f932702f93c6ac2b. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/US4NA1110174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a352b87338728bde1bcda00c3353c680338731890caf21bc230d322ac993a47. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/US4NA1110176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85850dba315a98162b5a4b76a1277ef485e9fb449733a684979de08a2ce205d3. 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/US4NA1110120.
Dangerous Drums 3 (Disc 2) - Mixed by Skynet
Dangerous Drums 2 (Disc 1) - Mixed by Mampi Swift
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe726f5922fe3c617288c0fa46e93cbdd3f5d237c5273a7ae37a9c7c7003bea24. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/US4NA1110205.
Dangerous Drums 3 (Disc 1) - Mixed by Stakka
Point Of Arrival - Mixed By Stakka & Skynet
Dangerous Drums 2 (Disc 2) - Mixed by Kraken
Blueprint Archive - Mixed by Stakka & Skynet