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 0x0d3844fba9d6c4aad0d250e56b2e47341cd80f03f0532a9e68599eb242cf8ab8. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c13de2cb-7e8a-4483-995a-45f0cffb311b.json and https://artists.proofprofile.net/proofs/artist/c13de2cb-7e8a-4483-995a-45f0cffb311b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kitsuné Musique Mixed by Amatan (DJ Mix)
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 0xc501beffd018a50910aeeaa756505bd15e40ee43d98c50b6013e020cff2b6e00. 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/FRU702100044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42fcf1b0012752c6b9dc38ae1f81dc19232906675599b4ddd375fbdc08f12b1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FRU702100046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b04fd3a7d90428ae246f352dfc3d8f0b61319b41491bb19d2cc9b8ae0a24bbe. 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/FRU702100048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3232c413ebb4ed9945e573581b66fbf22d3298a335ec85fb52ebd37a725668e3. 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/FRU702100049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b0374e1c69f4ac5d5b9065ba6c224f0684a6b7a637c9c0f643db9f6130f8aa. 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/FRU702100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af125cb49727c58d7710cd515467a6102d87bafa358e72a0ad7ba93f038799e. 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/GBJAJ2001003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c98333da467beb45e6528b3d2a585fb9ca6f2e98892b24271ddd9400690158f. 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/GBJAJ1900756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce944de78765a254a0ed73cbc6b4ab47b8624c0606d9a37c0ac3ab090db0e65c. 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/NLF711705034.
Man With The Red Face - Extended Club Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b072e1774d72fde02238ced68e24ebd625cf5fc5d98cdb619ba77d85a7b4ad8. 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/GBJAJ0800571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d16642544eca69971c4fdad7b395762817548350f63e98ab32ed04b86e528e. 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/FR96X1991651.
Paradise (feat. Byron Stingily & Norma Jean) - Mark Knight & Michael Gray Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc898ba779de01d3314b93275e13778579bc35555cadf26aa99746524b3e058. 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/USNRS2039514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3f9a49fc7bc49138b918b7b67ed13df578ba27cd52cc8f9b6349a33af54c66. 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/GBJAJ1600292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a1a76beaff0da36e27f149878852df5e30fb7aeee5443d9844b0397cab7ed2. 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/GBJAJ1600281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x694a5ed5a5b675ca49570d94eadee0638631486cfce5253d3709c460ebb2716b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NLF711812295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021689dd07235501860b3e7fa1fe6976aa074e67010cb7b79ccb0e5bfe44f01d. Chain 2 (Bitcoin): anchored in block 960306 (2026-07-30T20:23:53Z), 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/NLF711810220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7f5e9ac21de29d8494f329cb5187c159741e6cddd4b70cc724779182bcf102. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/DEN061800769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6752e8aa99c170f5f0395fef89008b5deb5073d70db2bb30e2978c256b7b3e2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLF711812059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2315f4103efe0edd1e52a3627b125083e96c71854c7e380646acbaf47c6f6c39. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLF711811816.
Dancing Together - Erdem Senel & Harun Yilmaz Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d954489d5df7caa92f6d9660ac3993f949e7fb101c859660605b1b1d5face24. 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/NLG3N1800038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8246042b1dc651c94e5bb1d3e6585e3dfb9ad5b0d132d58950ab7e8c1e896461. 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/NLF711813050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb7b242c1d5ec0c4730d0ffabc9f8a741fd7532037d9183009ace26be12c752. 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/NLF711812807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6342d76eaf52629fa231f88414ee294a7bd5a250a8c3843a1f2dc17ac9261ac2. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/NLF711806592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea3ec4ed3a168e012e62355f15bf7518eb81cc96a90eceae43e68d38946f1c7. 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/NLF711811984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c1caec1cbd4f6dcf1c98385dd24019b97205928e9fe40e31ee01c1801c935c7. 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/NLF711812062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0207c7c6ddf315cde05fbebb8fb09c3982c71d46d67224b9c8125165a9db3703. 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/NLF711812009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f370c6ca9dae712c023f66e10ad5bbc96ef1175d4e2f64d1377768d7431f57. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/NLF711811523.
Touch Me (Mixed) - PAX & Rui Da Silva Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x546944acfcdb038efb2c24d191969a6f699e00b3d5df7720b0bb0764684ec3ad. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/GBJAJ2001789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7629deb8bdbd65a46ef3e1a3a5a7db630316bf02e609e8fb25fc28933b424050. 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/GBJAJ2001795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9f10c755946ec51682faddf356273b0e5f2f58b11174876af7b8d3f6b3c7f7. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBJAJ2001774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c32c21b9bcc0fcfaaefff3354a0eab17b00036640e3d0eb8668ba59746ad46. 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/GBJAJ2001619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46528c4820460fd899306350200853c98bac762c041c23f2ee32ae36cd433963. 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/FR59R2037859.
Touch Me - PAX & Rui Da Silva Extended Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3058eb63094bd7409faaf3022e7374df880818ebe3a929dfaef7b64abf00f259. 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/GBJAJ2001196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d583137fd654c78de3aaa9c29d40bd00e334c816e48ffe9578a3b9952eaf72. 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/NLF711705330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f301db553a761595c7fa76a3fc73d95b3ec8a26bb6543177860111108a2493. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLF711600423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e4fc827628f7d80f362430542f1bc9570026f896bd76ba8f847bb3de543c46. 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/NLF711713266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89623f9257bf96485610cb722d00e717b61473497181891c404b54af864ecdf4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBCMH0000502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d40c65f0e7adf39f1b03d58460f5ca14991b031eb404efa0e6f688de0278e5e. 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/NLF711711063.
Toolroom Radio EP528 - Presented by Mark Knight
Toolroom Radio EP536 - Presented by Mark Knight