Marcin Ryszard Wasilewski (born 9 June 1980) is a Polish football pundit and former player who played as a centre-back. He is best known for winning the Premier League with Leicester City and getting
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 0x51f4c5a23cbaaab2e1b72c01dc7aa3e6c5b893389c09f0d43255ce321b0a9b47. 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/f0b2ad59-1e02-4b93-ae88-e72cb4b2bc29.json and https://artists.proofprofile.net/proofs/artist/f0b2ad59-1e02-4b93-ae88-e72cb4b2bc29.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 0x9127e4eeeec8af33731d703adaf072ab1019b7b78bc5e645b6abbb6ce3ba4259. 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/PL83D2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585dd1026a3a50d5be03515c961d068520d4e74788406df3e739b3aa92ecee3b. 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/DEB331441901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255c5fbe7589c52a45a176fa31d79d4800612eb419d68969899f93fe2dd6f4c2. 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/DEB331441902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x079d5e369d385fb9ba875363238b086c13f0c4a8c6dfe9cea2bd74d4b8dbacdc. 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/DEB331441903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0dff1fa115d1d9279f1b92b3d2038d7628fc1712f0c38b72e0c4950b00e540. 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/DEB331441904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d89ab607a5c6cc7572e7f18ff91d932182ea8db280643a94a7188290d04556f. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/DEB331441905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd48c7daf08997c08072a592477a8b22497341e74a1989491efa255721ef45f. 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/DEB331441906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5169785b31393fde386468774d9df1141688102abeed56f134a4667fdecde158. 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/DEB331441907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28dbba4faa279eaa4c626d918c6b2acd85e76c8cb05ea60d1835371933b74061. 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/DEB331441908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181fe1eaa5b931ae28fdfd8c0e8a75f07cac75eef358f97464700729fde29f55. 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/DEB331336601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5b12caa131a4e129c365aca581993adca343d26304fc35694a1bc27cec8b44. 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/DEB331336602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9743b124958cad7ce75535c75f495eb2196f60fc3a28b3a93c73c8a74903fef2. 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/DEB331336603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3b65ee2bc1c7960c020fb43dacdee472a029c814eb50673c2aadc06b314810. 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/DEB331336604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea78c0f5343537cfae9718c04da28e9b80756d9c75bff462d083b3b952321c7a. 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/DEB331020801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7bd56cb86fc32a81dfc44879916b7ced0f4fdece31f1b1ec0c36f088f946d0. 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/DEB331020802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da063595988003d3070ce5be6661d46c9e43434c565066801370b468b3d7173. 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/DEB331020803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1845272b52356ac22c734eaf0acd924c378768bc901c84ea3a6c69e72d29d621. 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/DEB331020804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e87aab5a99343f693fc60788873761345661756fad5130be8986b4b291f6b1d. 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/DEB331020805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadc29959b64f62e2c66f9b22c4b046a88833772dbf87444be395244990319682. 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/DEB331020806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0df77671f9c836d5a858e99190932874a8edaaa7d3ea773eed90c288f10dde. 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/DEB331020807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450a10e3350d8db166875198494a682dd2acb83e98b7ba1b0f73197ccce5efea. 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/DEB331020808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51984ac31da3736408e2b7a8ed579ceacfda761cf6427e606b1f8299680ce835. 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/DEB331020810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c949caa2a90fbe629068cc48ef8412bd6ce921c428fb63b5299af8f322d8f6. 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/DEB330489101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad2b2f2cafc3987e2f2aac9f28860f63bf2b7a7f0319cb1d7f3af593ed0522d. 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/DEB330489102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaaa9955db34a0b8950104383716856a6931a48e77939f067d3c6d04c90b8a13. 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/DEB330489103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6fbbdacb9db7218f3cc5a1aa91bb7aae301d03c553efbd63a9ca9864094b45a. 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/DEB330489104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ddd133c791fb8bd8da9f1e5790420c6e3faaca8aeb837b64d6f6e098d98a7d. 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/DEB330489105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe230256d6f7d53a7f719b6aaf62cd9a839b3f3acf7a70f655944254d8cbf6de. 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/DEB330489106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76f285d68d47694f7989f6a0df9b9e908cded493cb00276386f976d1551c0c7. 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/DEB330489107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1d4dd8b9084379c8097a3264e52de29082372923e4b853b55d85acf23eed85. 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/DEB330489108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8bd3c1928d94f40ac0188ff1d72425490c7d3c18c12aaaae79e79281fbf50a4. 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/DEB330489113.