Vlasta Redl is a Czech folk musician. Musical career thumb|Czech folk musician Vlasta Redl, Lochotin 2008 After playing at dance events in Valašské Meziříčí, Redl joined the Zlín band AG Flek, begin
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 0xf615329228f8b59620d50d8851d921ee4aaf5e07c86392734d9a12f09e128de4. 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/bd76cb1f-8ba9-4385-ba73-daad8fabec10.json and https://artists.proofprofile.net/proofs/artist/bd76cb1f-8ba9-4385-ba73-daad8fabec10.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 0xcd35aa7e80965f6903a390cf097ee94a448face744dfafb2e9c22f6a4576e766. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/CZA239200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa2032c181ffc8b0fb2c546a73635af20c9f52cdec1651000ef3334194226c8. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:23:06Z), 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/CZA239200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ee96cc86df779d4e8b555563997e09be88c6c4af678b038c9b6bb628088e4d. 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/CZA239200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866d8fc4fac1ddbda1da68a7d15d6a11b895aeb2cd4c10ae5e9dc34890fcdc12. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/CZA239200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75fc15468715ceaede999bd6c87885d7374cf6213511957ea36c483bf12c24c6. 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/CZA239200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d25724877a57c29b6477e26ec45f14ba35d7bf6a0bea8fd33129b197be32c5. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/CZA239200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06b23ef02b82ceebb24907b921960b5b6beeb411bb6a3a1a8b92306bd1ef2fe2. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/CZA210202380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d39373f4701b4d912f4727a01fff912c7a19b1543ddb202712ac9a84cd1905. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/CZA210202382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaddf0825ff4805cfbe9fa007df43ce5968fa374a26c328b724c51bd74d7d255. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/CZA210202383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ba0f8e8efe3acb029ee6d2421071d84ff9f4410601a960b628d8fca7790a5b. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/CZA210202384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c966d6f1e179cca7887298781669a78f294585299425c44035ab1f8b77e699. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CZA210202385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69ea28f88ce6e44eb5c7682e7218289e5394b57c4d2206e7ca716ff9b8836c8. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:19:44Z), 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/CZA210202387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e29662293b98b15b46d7dc1a2f741303b9274769df7f7679e8c6367c06337f. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/CZA210202388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a39c0ea5fbef1f903c0619b2749b2ea19feb79564f610edf64fac3587e55c1. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T04:50:29Z), 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/CZA210202389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c5ef4f8cc01471c1a7ed1300a3dfa6a398a3d20ce3d0d9e5dc2e1fca23b36d. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/CZA231100706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8662cbcde899cf0821e2bd4405fd42d73112adfb7c6835c1497180424f103714. 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/CZA231100711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49375c23360a5deb94f36ec880e5a34221ecf2d2201fabe4a8ad478f93009143. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/CZA231100712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcebf9044f5ff7c71e6cca3b6429851df1a79c5a5cf8964771095c6bf3d03771a. Chain 2 (Bitcoin): anchored in block 957622 (2026-07-11T22:55:42Z), 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/CZA231100714.