Cichoń is a surname. Notable people with the surname include: Adam Cichon (born 1975), Polish-born German footballer Aleksander Cichoń (born 1958), Polish wrestler (born 1953), Polish mathematici
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 0x218a81e09bc540cfa01bd14828aed83d9ec8bb90a3235035541ce0dbfad5d228. 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/fc6edd0d-09c1-4955-9200-4b1ea7e14922.json and https://artists.proofprofile.net/proofs/artist/fc6edd0d-09c1-4955-9200-4b1ea7e14922.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 0x1c874aa60747cc75e1f7284af5f773cb917a283344138ba214e94cd97cf5e815. 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/PLUM72100276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc856c9e169cae1505aee673af02de1ecaa0c3c15f00c019175af491ec60f9b9d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/PLUM72100343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c88db606101e049da4097294e83b0a2a7192ac9f235efb245f98c36a2e4ea8. 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/PLUM72100533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a0707a6626903a864ca7d255b235081f27c5ea04bb40152eceb4497d5cb0e20. 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/PLUM72100705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d56622ea170d63cb3b3964fcf44d68d86e74e961ae6e11ee9a99aed9c3769c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PLUM72200991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5659cf857139b5b204e08d051c18e1d3e9084c87d57f04453e0c48a7493fbac7. 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/PLUM72200293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dce2bc2954760008de346b42cc66991cecb6b56327ab27276041d54b169ee54. 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/PLUM72200992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed318b302664d450f196b866aab806a563a5097dd3dfffbaeca3f541ad94ef7. 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/PLUM72200423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbdf28e014f65db8344a2772f1d77fd19d34174e25c1c76b7d2308812d30e89c. 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/PLUM72200993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb34d5460785ee569b6ae5221e0d1767be4875773284dd008f47149c1cdfcfa27. 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/PLUM72200994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c1b8364cd9938ccbff8c5659c304af3acbb4334c69704830924f42b2ab821a8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/PLUM72200995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3bb672b88998fd955228816df92e504d0259dda41097d4a307561301339d34. 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/PLUM72200888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d214ab4c07c8d2ab54cfb18f152e56c1e025a6cb5eb9e159c9e1da441b5747. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PLUM72200996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a8183c4d2d60a66b517e3baef9ecdb5d0a8bef6c080808b54d0ff4505b5469. 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/PLUM72200997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64f64e381def0c4fbb2ebdb84ee3005444c548691136261e3c9eb2a6cbe55ed. 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/PLUM72200998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1fbefe2840b4a9d0416557e03abca0b7e6beed856ad2b14427fd38cc33e79cd. 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/PL2DY2400143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0797aca52866691ffe36dbc24804141e41c441de63a311dedd310ebb2e4d909d. 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/PL2DY2400423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e4f3bba5f1473783e5ec43a0dd40576a9c48f707b60262127ded3644324904. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PL2DY2400424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227306770f9622be4352eee3de7ce779053528d392a3f28ff41ae8fb43c2eec0. 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/PL2DY2400431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c3bc16a570519af38782d1c8823b4f681543e7b5f1091aa5f159307ac0e59d. 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/PL2DY2400425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d28631de30eda4bfa51bbf364aeeaf968f6bd19d9a46c0c5030b19da56dd59. 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/PL2DY2400432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26993ddf9224a4c0e98e77cd87cea0401b1f70ef79608ebec669cbdd4a5f9996. 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/PL2DY2400430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x520219031c97699070e2077a951957930d6fc0fbc8d092599f7ca2729b7839c3. 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/PL2DY2400429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a6ac2f5320506a4dc2c542c4b875bcf0b5f4b662fcccec071c14d7c6f1ace1. 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/PL2DY2400428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd99f04983fd4f18c6f2b13327151402ca67e42fc8dd9eca4f027914281cba06. 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/PL2DY2400433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b03d5cb89ae244b8b685c110526d8e23d31c3ce4dfc8f004c4a18e2d869e61. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PL2DY2400427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773333cada6e1cbe2da84e788466f390c078f518f99418ac273c89bba480138b. 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/PL2DY2400426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x574b00d819920ec05144e15efe4fb5d27e5726351f8413051cd6e8543136bb73. 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/PLB382400427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54983a2bc647a1c1674e0304fcf8ba6704b6865cf0c1c5aed41883724bec3acd. 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/PLUM72400165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5368e9bc0e13d7736c2ce680c017603c97e7aa3af967f9cdf40ea104ed3342f0. 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/PL2DY2301433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2adb870def340078b94dcdc54f52092b5c5a4421ab1afd3a6bd2d01b77fb6c86. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/PLUM72200132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad48047f824020e4469ca6baf2782ea3652c8865ac0b7abba7b89f54fd07a96c. 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/PLI363574330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bbde312340abd2a5e643c4002df992af6fa4716a874dabbf82b23010c355a0a. 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/PLI363574380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368a1565cfb3c4cc537ce6234454439a7cf88c8ed8cea42639aeb78afaf9b16b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/PL2DY2400152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368a1565cfb3c4cc537ce6234454439a7cf88c8ed8cea42639aeb78afaf9b16b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/PL2DY2400152.