Matteo Bianchi (born 21 October 2001) is an Italian track cyclist who has won several medals at the UEC European Track Championships. National records 1 km time trial: 59.661 ( Munich, 15 August 202
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 0x561f06032db9d924f4035a823cfec60e26b486bb3963d5e41aec371990e4bee9. 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/13ea18f8-7af6-43f5-9d70-167d00d73a41.json and https://artists.proofprofile.net/proofs/artist/13ea18f8-7af6-43f5-9d70-167d00d73a41.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kapitel 05 - Italienisch für Anfänger A1,A2
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 0xb10b5ac265fe2df63f746a19056d68f95a3bbc98eb22daf1bd7b1d73e1855d95. 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/DEWI50011025.
Kapitel 07 - Italienisch für Anfänger A1,A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a671a84e199de8d20432bce9b1d8b9e805e64fc2bf00e17fb429ddbdeaacbb. Chain 2 (Bitcoin): anchored in block 957658 (2026-07-12T05:03:28Z), 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/DEWI50011027.
Kapitel 08 - Italienisch für Anfänger A1,A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb99a2e7d1c8b0f930f2365bfa680ad096d87a69a6704db85c79ff7bf5e9d0f5. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/DEWI50011028.
Kapitel 09 - Italienisch für Anfänger A1,A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1fba0f6c6bbefa8c595128a0314361c161fe487cc29fdd16e6d1739ff9a0930. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:27:33Z), 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/DEWI50011029.
Kapitel 11 - Italienisch für Anfänger A1,A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff4d44e1bf32bd8c6400458a0651700c4d4a949afb9f189524d513c3efcde0b. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/DEWI50011031.
Kapitel 13 - Italienisch für Anfänger A1,A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f9065e17af45e7ffd40960b85669b07128f5ad09270fdfb7fed0e4fa59c1d79. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/DEWI50011033.
Kapitel 14 - Italienisch für Anfänger A1,A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f18af4008085db94260ac4937bcf71e9bdc5c3d412f92f452993959c655a68. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/DEWI50011034.
Kapitel 15 - Italienisch für Anfänger A1,A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416737f97e60553f8459a32783f29dc1dac56ce4aadc6f0e151523f0c6c0b40c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEWI50011035.
Kapitel 16 - Italienisch für Anfänger A1,A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x701652856a8daa63596edc52e7d11fe6c5ef2b388fa8db3b945fd7b1bbedfcd3. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/DEWI50011036.
Kapitel 17 - Italienisch für Anfänger A1,A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7411d032229ce06c018f177534c69ed20498158be16134b27c45d13491a9bdad. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEWI50011037.
Kapitel 18 - Italienisch für Anfänger A1,A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452b117d0153ab232eb1d6409c6e5560c0c70694c918042035af10e83ed3a0da. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:30:20Z), 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/DEWI50011038.
Kapitel 19 - Italienisch für Anfänger A1,A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c868704014d98c626ef227d81bc8dc12c8f2e75b53814232e1a2955e64d131. 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/DEWI50011039.
Kapitel 20 - Italienisch für Anfänger A1,A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9496a271814efb6b3e287c5038e154e3d99c93da7e6352eb057f77722d21cf. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEWI50011040.
Kapitel 21 - Italienisch für Anfänger A1,A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2534dc5744beb42c5059f90ea93904816e0cd65a2319b0d3eadfb5ceb8022fc4. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEWI50011041.
Kapitel 22 - Italienisch für Anfänger A1,A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6849034615b242b27127117308687784e8d374926ef11031d5ac92373cff778. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/DEWI50011042.
Kapitel 23 - Italienisch für Anfänger A1,A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x365af62bbac58207d90168285e28f9508d09f9d4b0d69851d3804997fce1bf13. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:25:31Z), 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/DEWI50011043.
Kapitel 24 - Italienisch für Anfänger A1,A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0cb61d53752612ad26ab928709b4ed1035a552c4512f34ff79e3115e8ae216a. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/DEWI50011044.
Kapitel 25 - Italienisch für Anfänger A1,A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0234b1ce85fba916e08b7802991dd6479d2332f18b37c31f9783ee8d05fd6e58. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/DEWI50011045.
Kapitel 27 - Italienisch für Anfänger A1,A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4dc093a0136ec4db043649a4a643bf5cfe71b3e455e6b7d939b749976c9a05. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DEWI50011047.
Kapitel 31 - Italienisch für Anfänger A1,A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c12646748ff997390cb025d5b7dc8abbf5b94ddab4018fbf805d1c78cdf977. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEWI50011051.
Kapitel 33 - Italienisch für Anfänger A1,A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d3890ff9b0e0875e69f044854981415751bea35d62df846a9b9845de5068cc. 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/DEWI50011053.
Kapitel 35 - Italienisch für Anfänger A1,A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f416db2d20662ec33a82bf9bfb4c1584f956ac563f4cf58105282200ea7b3fc. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEWI50011055.
Kapitel 44 - Italienisch für Anfänger A1,A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619388f57ec8a075886d28fa7426c009a3d5c5b95b532c3d9eea3eba3e1d48c6. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DEWI50011064.
Italienisch für die Mittelstufe B1_Teil 02
Italienisch für die Mittelstufe B1_Teil 01
Chapter 01 - Włoski dla początkujących A1-A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9217de8e6a043086c37748de33fccbc6d8ba6a663c44334ed440bf8e7ef99ac. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DE1JK9979440.
Chapter 02 - Włoski dla początkujących A1-A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ada2eca67b228d24348a068e90cc4dc0d53cd25c746d3b57efda6cee7905fc2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DE1JK9979441.
Chapter 03 - Włoski dla początkujących A1-A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75110d4ba84d3e4f254b16a35e71ef8fc6ec5a269391386972ea124175e898f3. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/DE1JK9979442.
Chapter 04 - Włoski dla początkujących A1-A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e9a2c41415f23ebf4538f37448d2e9099ac5d394d3f97570b6b6ff746e91fa. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DE1JK9979443.
Chapter 05 - Włoski dla początkujących A1-A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7579069ec588009870de6df4370783870bfd8372afa30f56d77865de856576. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DE1JK9979444.
Chapter 07 - Włoski dla początkujących A1-A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a26e93146a3116b7bb23274b4a5939ab70d2220e022164abde8ac6d17a3171. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:04:31Z), 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/DE1JK9979446.
Chapter 08 - Włoski dla początkujących A1-A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb088fd135c7e4217b2ebff7f05ad55a018054b9c76db1bebe0ac535f11ad0ff6. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DE1JK9979447.
Chapter 09 - Włoski dla początkujących A1-A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7197bc400147e149b2656a4017b9f264d11b6cc39f38d86edeb2187545d70785. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/DE1JK9979448.
Chapter 10 - Włoski dla początkujących A1-A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785af92879ad3bdb24fed84770009e71be0544036b85cc9cc0985b5fb8cf6bff. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DE1JK9979449.
Chapter 11 - Włoski dla początkujących A1-A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe937b24771438d6e0de62926e8b875859a98194ff196ed231ce64517d8fc1ebf. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DE1JK9979450.
Chapter 13 - Włoski dla początkujących A1-A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7594ad1f529592a131b88f798c157c234f17eea2fb3812d6f1035b80648ec8a2. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DE1JK9979452.
Chapter 14 - Włoski dla początkujących A1-A2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ae90699a51d6bbb400592da1476a084c572933b0764240464be78283bd06d0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DE1JK9979453.
Taliančina na dovolenku A1_B1 (Audiokurs taliančiny pre začiatočníkov a mierne pokročilých)
Italienische Grammatik für Anfänger und leicht Fortgeschrittene A1_A2
Italienische Grammatik für die Mittelstufe B1
Gramatyka włoska - dla początkujących- poziom A1, A2
Gramatyka włoska - dla średnio zaawansowanych - poziom B1
Business Italian (Business italian for beginners to pre.intermediate learners)
Italian for Intermediate learners (an audiocourse of italian language for intermediate and advanced learners)
Technical Italian (an audiocourse of technical Italian for beginners to pre-intermediate learners)
Italian for holiday (an audiocourse of Italian for beginners to pre-intermediate learners)
Italština do práce A1-B1 (poslechový kurz obchodní italštiny pro začátečníky a mírně pokročilé)
Italština - gramatika pro začátečníky A1-A2 (Poslechový kurz italštiny pro úplné začátečníky až mírně pokročilé)
Italština na dovolenou A1-B1 (Poslechový kurz italštiny na cesty pro začátečníky až mírně pokročilé)