Danny Masseling (born 20 June 1981), better known by his stage name Angerfist, is a Dutch hardcore producer and DJ. Aside from his main alias, he also produces other genres and subgenres under variou
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 0xba133d8d2b82cbeab0e48da8e6e59ffde380218e057ebc63e3f47e77fb28f02d. 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/cc0bea0b-631b-41f0-9b37-a0c412b9ce0c.json and https://artists.proofprofile.net/proofs/artist/cc0bea0b-631b-41f0-9b37-a0c412b9ce0c.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 0x942bc2fdcf8e03950d2a47e771c36f0c4a0aa8fef563dff9bc34ad6c70675326. 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/NLFL71100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f17c621ec1b06bd2cddb98ee5a150bea6be97679dfdc923bb0170d30b8d245. 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/NLQS92300067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aaa544082916a9ff549577b80f811decd61d341e725fefab790a5b4254fe9a6. 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/NLFL72300754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaae6bbf68d2a85b4fc3cd8a94fe8866a557f47144f0027694c1985ba14df875. 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/NLFL71800945.
Masters Of Hardcore XLI - Vault Of Violence (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x693f8c73bebf69948697b06d5e1c0bf371f71d23034096d045ae11c02659d7d3. 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/NLS241900120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc4a98f56aa7f8ab0e41d736ad97242780f480ea1b1d080708d86b2219763fd. 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/NLFL71700277.
Masters Of Hardcore 37 (20 Years Of Rebellion)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1414e8014ad09b66d2d5aece915762fb0403987d6717aa3e31b1907eb96b4e4. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/NLS241401948.
Tournament Of Tyrants (Official Masters Of Hardcore Anthem 2018) - Radio Edit
Masters Of Hardcore Chapter XL - Tournament Of Tyrants
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb364e48e50e4a96dfdb98f5730bc31fec9ed30a729ac2b8c2ae4d8342875e8c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NLFL71800067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba63782263ffd69a34a5e9a5cbcaadfff5958eddbb2ae4653fabda325618b85. 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/NLS241900094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f51a12a266472019ec9e06c8e7d0ce60cd1df2ece88502ef49dcb0fc3a92b98. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NLFL71900179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf195a474d98f335d3b10d30be27f43dbd058c6d3e77dd133f43cebd93e09a36b. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/NLQS91900223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb4347eb48ee31c0ae4cded2a45a838d7743d165cb158c39dce5f4066aa04c2. 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/NLS241401949.
Masters Of Hardcore - Magnum Opus (Chapter XLII)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12fa5ff3877866b57c66478be70da77332e2694c59e9fed0970ff5942eab4a7c. 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/NLFL71900420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67dfcd13f910a9ca9e392542e8ad87bf0ca3037e301242d26794f16a4ebe9cc. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/NLFL71500102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10e33d6f19ffa28c3eeb7cfc6cb7df36f06e2c98a7cf12a4380fa068825b047. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/NLFL72300990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e6a0fb959d154cd276a5f86270d7ed093ae21db9106f9297154187135edc8a. 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/NLS241401960.