Black Machine is an Italian electronic music group, most active throughout the 1990s. They are best known for the singles "How Gee", "Funky Funky People" and "Jazz Machine", all of which charted in se
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 0x33624a5c526778ef6b1867f0bd0c745edd5369ecb81edcac693bbfd7a6379e1c. 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/cb27d8ee-bcc8-44c7-9e1f-f8717116b763.json and https://artists.proofprofile.net/proofs/artist/cb27d8ee-bcc8-44c7-9e1f-f8717116b763.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 0x172ed1bd3bbea9c9666913f4989c60e22a1484af0ccbc750641e6afd8a585673. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/ITQ039200165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65cbd51cdbddca59c22bb6777cfb90192b78532e39317d22283a1ef8780f2d4. 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/ITQ039100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb0d0993510a24e5026d39fbbed9f187b9c2a2d1d85a57a6cff450c60481e0c. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:06:14Z), 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/ITQ039200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbfc4ce66706939c311ca208ede9f755813fb89d7ba9640e186cb173ba2cbc7b. 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/ITQ039100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b47b4d38a67a45ea34690f3f600a76f003e0403f0c6977368d284664dc85660. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/ITQ039100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829e176adc3a034e05d4d9182055da5f0458ed33c810adc9d6f0df2c23f80196. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:12:23Z), 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/ITQ039600009.
Black Machine 2005 (One, Two, Three, Four, How Gee)
One, Two, Three, Four, How Gee - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27b3768d3678978cae88c74f772e5274875f01cf9e094265f2e2bfd7a15e07c. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:28:55Z), 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/ITQ030500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c51217bd87a0c2d2b6b0584f7954bec37272749d58e9184eccd8727a4ca334. 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/ITO051401127.
How Gee (Raggafloor / Raggabass Remixes)
Funk n' Beats, Vol. 4 (Mixed by Fort Knox Five)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c51217bd87a0c2d2b6b0584f7954bec37272749d58e9184eccd8727a4ca334. 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/ITO051401127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c51217bd87a0c2d2b6b0584f7954bec37272749d58e9184eccd8727a4ca334. 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/ITO051401127.
90s Hits For Workout (60 Minutes Fitness & Workout Compilation 135 Bpm / 32 Count - Selected & Mixed by New Workout Order)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ed9a55bf746c6a21e7b8c9c3df61dd457eb4aa0562561930e460831bfcc3dd. 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/ITC941706682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6dc600b6f87133f00d3889d8b761e3dae6c49a2c3393b0f55bbf54d60691e6. 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/ITC941604506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79fa0357024b6d107d788a515d9d1db47e3295c80b95d902c27f4ed1c8242b45. 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/ITC941701199.
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