Michele Ballabene (born 30 May 1998), known professionally as Taxi B, is an Italian singer and rapper, former member of FSK Satellite. Career Ballabene started his musical career in 2017 as a member
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 0x0f43505491bae0b5c4a85888dac0eab7ea22bbdd361fec0a1068ddd349563ca7. 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/dd18fb9e-a2e3-4cfc-8d79-fd311215f9f5.json and https://artists.proofprofile.net/proofs/artist/dd18fb9e-a2e3-4cfc-8d79-fd311215f9f5.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 0xc2194850f53a89f67784bb212f868530c7dc471f2d947df074112589413cae9b. 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/TCAEF1913274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf31a7ad4d546c83d181ed2014a0574e02a186d596f8a4ea77cea6da49c8292. 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/ITDF62077054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c51e4f23b1bb9495d7572d645abc419a5bb06556df2906b0ed7893726a9a9a. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/ITUM72301268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da0f8176d6cec3c907cacdeccc0add3d563594cc2f8e7521554316736fadb24. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ITUM72301315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2791ac119df425caf80fb134ecf2ae172c264642c6916b77a5bd22d22ff659e2. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/ITUM72301319.
DJUNGLE (feat. Marracash, Taxi B & Paky)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf182ac5f7838d73d382cc0045d5a92bc6073bd7e18a942e1e98cc736a0f6cc8. 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/ITDF62177029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23800e0bf74df8b761b62852f39de3e0ba249cae7352206a4ad2b2807184f1d7. 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/ITIWE1900094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ef98471e4143fe4c5880a6dcbc017afa0fbe2dcb8cb189636576107ed04d38. 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/ITB262101040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4a778a03758a8525f8f7fd004567d84c3e8a53b8916558d38336af996df6af. 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/ITUM72100378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4a778a03758a8525f8f7fd004567d84c3e8a53b8916558d38336af996df6af. 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/ITUM72100378.
PROIBITO (feat. Taxi B, Mahmood & Fabri Fibra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579ea1eaea77d5a04a6725fc31ba0e2727346f52f57501da632c09bdfcf0b419. 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/ITUM72301015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbaa7c4d84018a99f00efd0e4b18a34eeda2aa41303cc365be9903ad002d95e5. 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/ITUM72000325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f056d67d59a0346e46a26abd8f7714ed8b88de6d426f07339062af306a2c00. 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/ITO3P2110019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf182ac5f7838d73d382cc0045d5a92bc6073bd7e18a942e1e98cc736a0f6cc8. 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/ITDF62177029.
MACHETE SATELLITE (feat. Salmo, Taxi B & Greg Willen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e24dc7ac43c171c3f35896abd37d5a92284f725eae790fc49424087cc43f93. 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/ITB002000440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ef98471e4143fe4c5880a6dcbc017afa0fbe2dcb8cb189636576107ed04d38. 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/ITB262101040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa812c262c40d6ec141f62349e8f19542480d31b5433febca629bb1d2b97a8909. 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/ITDF62177119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52f20316664ff218c609918ca3910f21bc4e1bd497706aecbd43986b457a03b. 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/TCADU1877525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec3a29397907c1b393333fdb7283a5d107e73efc416490fcf302b532cb077e33. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZES61980230.
Mattoni (feat. Noyz Narcos, Shiva, Speranza, Guè, Achille Lauro, Geolier, Lazza, Ernia, Side Baby & Taxi B)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7954a92539f14075898ad730e64a24fb22abf0ee8aabea5e91394a3b96203b3. 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/ITUM71900840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5460346a309aa8525feb238b1f4bba77c06d91615c55acb75445d079604e6be7. 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/ITUM72000932.