Wanastowi Vjecy is a Czech rock band formed in 1988 in Prague. The group consists of Robert Kodym on vocals and guitar, Štěpán Smetáček on drums, Tomáš Vartecký on guitar, and Radek Havlíček on bass.
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 0x2ce89eeb762edcb950e13abc4a5d1f06a81ea7059442af40e23d85f11ff56d16. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/538ee2a6-388f-4e07-b9fc-f91f2571d7d3.json and https://artists.proofprofile.net/proofs/artist/538ee2a6-388f-4e07-b9fc-f91f2571d7d3.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 0x6fe54bfd5416dccaec02f828cf3b0db0c30a510c865942d7272f049f45e2ffd9. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:03:36Z), 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/CZUM70600242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298aa9b44fd7df2cf091ba295222fa2acf84a35fe925bd31dc22d9af6a1e9318. 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/CZUM70600237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9efc2c301fa37d5b8f47b2c64c426d4a3d44d728c1bc8c6c5cac05d42d0905a. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/CZUM70700653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x505db564db08da494c3e6bb1141f68712be517c3e42be337e5e9a479df409c5e. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:01:40Z), 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/CZUM70600235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a013bef12ed130b7939ee02b7229562f28e6a117ba94a738c716936099da09. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/CZA110306193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88c4b5a1f33686f162b66cbc0225cf4983afa6e43b15e8dca9834d2be53f274. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/CZA110306198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45383a77fecd0206b961562ba8d79459c7d0d316e853924bc8a09d64b10b170. 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/CZA110306200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff6c8a5c4624ab092b7049c85b88bb7d61f8769c7853494a8c911e2113de846. 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/CZUM70600230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca74d83d6b3241b56818f03784f7cdf0e9b2cfeaa183166af4bb554f7267f39. 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/CZUM70600234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47cfd35a8eddf6a5c35cde1cbd49067a26caeb3a3b4db59611657ef2e37a194d. Chain 2 (Bitcoin): anchored in block 957550 (2026-07-11T09:54:43Z), 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/CZUM70700515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0715b223dcf54149dded2d000921ac4cf7e746bd4069bc69aa5342f383c0c5d. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/CZUM70700511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb471442989b6c27589edccea19cd6fe73bd1571f88c22f426565542975a100cb. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:49:43Z), 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/CZUM70800961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58694bea91ebe05800971059e58eb5b6f8ddbbf2ef639113090f288024b1bd39. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:36:36Z), 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/CZA110003033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa045e20b6f7ee592d0005d561e127ee07a8114621134a1852a3ba6a9e6bf4a. 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/CZA110003036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f8cb1982bae2ef5a7ba613588de8ba03f9fd135f08fc5e31f398c0b2a1cd45. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:41:11Z), 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/CZA110003040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a26ccb17bb1b6a38dd8ca4d4a8e2b3678d1b8bc97c8e8f2f4653f0cc5b43f2c. 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/CZA110111016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde175d22da79aa5480547c24d6538ec13b6b8b48efe2d1164661d6031229c3f8. 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/CZA110111024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee78675afeb263e8282743d61ed578b8bba7859361726b417d14b289182b22d. 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/CZA110111013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda5e7f5201ea1142e19901688a721456fb2416b41f476f75ff8de12be31ae71. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:03:01Z), 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/CZA110111014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc89833a7dd8de93f70c45035add6f752c2d6a1caa8f995dcfbae376b8df369a. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/CZA110111015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f9587d601bc4bc94f67c33a1493cd6d6f19581201cc4a4eb1ddbbde53ddefe. 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/CZA110111029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x689d918681f6bd411094f9c03df35982b2fd0165eba1bac7888e7dfa630642d1. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/CZA110111026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0715b223dcf54149dded2d000921ac4cf7e746bd4069bc69aa5342f383c0c5d. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:41:45Z), 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/CZUM70700511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357f2fb341c1989eb8b1428b60b3ce316844fcbd86d28e77408c28589d41babe. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/CZA110111023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2991cdd081faee8dab2919431b3854c88cf9a564e3ef4a3d0859f2e3b7c4689a. 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/CZUM70600236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51c172ecbacdeabfa68ed5291b31dc7e40d2ee831b86fb901e554ab05452c40. 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/CZA110111019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614bbb2cd5ca728a0d00f127cb26c746f3c83046fbf890a50f5d1db0b4d641e5. 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/CZA110111018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc190619eb93bf7972841968ac8f8e864aee5297eefaabed03e35c8f2998912af. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/CZA110003032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b692a65dd20f30292ab1b08da0040cf11df68fa461d480145c71af9806a941. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:51:15Z), 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/CZA210600731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d6b5a32833e087b43c23f004bf5ec825a42ad7762bb64d7ded096a2cde08dc. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:29:27Z), 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/CZH771100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e44cf82f7e39f1b38bf2a76c8f00dacfb39ce3e03254f6fc8d4ee74c2e466c. 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/CZH771100033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72ab30fbc03254c897e21295df6c5dcdd46f254943cf9faaaef48427b29b0a6. 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/CZH771100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584611eeb9a7ed637e447d7d6b8ccac2480ed844c616f448c0ccd4046bf03b10. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:32:49Z), 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/CZH771100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0bef87b18b7de3e7df1e1511ff1422a927d4097029fa3bf95eaa67c83489195. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:07:16Z), 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/CZH771100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ebd91558724d3d0c1fe8323fd95390951c8f9c0797fc5d82ce12edb5964b389. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/CZH771600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf8f717cc72c6d12b1f2ac052bd8c83bfd25232b68c45c25f119bb3e546d95b. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/CZH771600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15bdf87966f803e942e24a490cd1197c08b427a3e774a719a3fb1b4391340378. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/CZH771600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee8cee2bf46302ee4d05fbb0a99a63a81b24012f1f78d7f7e09d749dae3d5c96. 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/CZH771600010.