Deepack is a hardstyle duo from the Netherlands consisting of Frank Pechler and Marcel Van Der Zwan. The two met in high school in the 1990s, and started producing together directly after they graduat
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 0x61e21740b48bad6a6fd10a40ba19a87f3ebc1d05ea93fc273fed54203e09c366. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1a7eb9b8-47c6-4aad-91cf-95e4281b63a5.json and https://artists.proofprofile.net/proofs/artist/1a7eb9b8-47c6-4aad-91cf-95e4281b63a5.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 0x4b58101c94e67d9767848c0c7cf8d43e0e83937476e362d3bff20e2752d00200. 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/NLM070500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5070282cf5c864f0f575335223a8b0a145967f9476ab66fcd5739e83ff9955ea. Chain 2 (Bitcoin): anchored in block 958677 (2026-07-19T05:47:23Z), 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/NLE800400059.
Skitzo & Steady Rockin (100% Deepack Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a454beb24fb05f237b578563318b29a569b3ef81f05673597e294e676c89e0c. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/NLS760600330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46df87717ccf2cdefa7a91f9934b1ca2a3f7858e932d667b50d2895a637dbc8. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/NLS760600331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e903f167aa729cb81cc24450c647c94d3ebd9424a1fb216cc94a3c7822a66a9. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/BEB681400277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2465ca0eae91632d496cbdc07018972d7827f14097ae20b095e4945e65c60234. 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/NLH2L1600004.
Fight the Power! (feat. MC I See) [Radio Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6b06f25ebb34f1af7c8a655e82c6e3d9b2285e4c2dc088870304f7a0dd615c. 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/BEB681700201.
Stampuhh!! (The Prophet's Stamp Remix) [Mixed]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e6dc00acacb3acca8844d139daf02ec5864ac928c782d7e1996caa56c94072. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BEB681800057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d890ad98b2da4d3f47884d8ac12efe434ca41605f0dc79d936c8a24862834f0. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/BEB681800134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdafc3860ae05ce9818e7ed0d2d8fe92fb12e12d9fe38a3e6f6e6f1d66db8ea22. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:38:26Z), 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/BEB681800377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf72f4a52a94db8d4d1af80160ca69c30e484e6480390ccea14e6d7e8e600f63e. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), 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/NLE802400139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa74851703c57645457b96ff4fc77639cb45ad7a83040d3722181da79412f4bb8. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/NLE802400306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349200048fa7c8546a07d9544d4a8b8022e72e95374eaf8135f4a98b54924cbb. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/NLE802400394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31da51b26f44bfe6bb7bd7f0af1b5c89ddbc7128965615134d9dac313d3513c. 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/NLS761700369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230c5d30470abd5cafdf91a1b0112aab5080db9b1ee576ab7d5a633ad0c17197. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/BEB681100145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58881cae381beb263b38953f13cb1c85b4c4c6fd451657caa7ad0a3aee6ecbc. 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/NLS761100027.
Hate It Or Love It... This Is HARD with STYLE - ONE (Unmixed Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8925c54e04f107caaf4936a5df6a1a49df647f6ba879f782cd71cf791f958475. 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/NLS761400151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c82c64f725a9d55aac13ee1e7ae4908983049b35d16fd5fddc3cd28add1d1d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLE800610052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f441ace2dd098e9da4b9b15352c49d77b0bfc64d3fdef4d6626ede035fad64a. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/NLS761900071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef4068dcf82f050ed5c27cd6f2d11dfb4395c6f0a70f93e1282be6b781fe8ce2. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/DET190300068.