Zakopower is a Polish Goral folk music group. It is named after Zakopane, the hometown of its lead singer. Awards 2008 - Fryderyk award for Folk Album of the Year iTVP , Telewizja Polska 2008 - N
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 0x8c53a18aeefb6ab72c49a691803e06e392011e8744dcd45d2d04fb052e7a03ca. 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/582ce2e5-ddea-47e9-b885-4dc5afe16adc.json and https://artists.proofprofile.net/proofs/artist/582ce2e5-ddea-47e9-b885-4dc5afe16adc.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 0x55c8cd0252aced7206f1e22d37894402f72388fbb7fbea2417042140184cfffe. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/PLA810400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4f5012bad87acf3db20630d1c218d4f8752aab777eb08b6bfee64f26175fde. 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/PLA810400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf3555c1390edda9bed320ac2157341d3a2c3ef104313c72297217657385003. 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/PLA810700083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d47685cbbbea4e2c378e0f4bba8547d29f6cd32a221ab3d2e993fcf1c51c37. 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/PLA810700075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4555af8e6cde81a981f854cdcdbfb91b8162d597cf98a53464f16c6a9dc59c. 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/PLA810700077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe16cd903ed8ff7b61dd533bb6686ccb5cfb67e16af6c3453bec36e8002cb9fae. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T09:45:21Z), 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/PLA810700088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4267dec0c293588c61beec707f44db971727c3af0077f49a8b9fddb630e48f35. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:00:39Z), 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/PLA811000048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1878f1a2e1b293d971a8168dea80adbc881de1a8dbb158042761d41f35940004. 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/PLA811000049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32043a2d5be1eb1d86d6862fea21a5e239e5d81c6aef238025d1198f79a8ec0e. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/PLA811000051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ecd9077575e842cf182de08832e1a62dc3789764dec9ee5d1c23fb55885c578. 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/PLA811000054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603e0be41a734adb191bc5bc97ca65dad4416d31186fdf4601fb26305640d28e. 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/PLA811000055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b74fd33e1457bcf8a15d665de22a809656b0d0a7a0a1b7526711908327c96d. 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/PLA811300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89696ec2ac9d36444f6d74d9a22ebe125134f8553c76cc958691341f05c51d0. 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/PLA811500107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf77dba25a85cd4ff72b4fa94f0900f1864bb2d72d7cd1eb8e4ef72eb0c8f8f0. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/PLA811500116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79db650a80782535db5c664bc904da0e0bb47c4ca676172ddb3e94b8a212052e. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:06:25Z), 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/PLA811600097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0055e72312db88e5cd3b6b505dafb43cd091f89bd1835cb44981528c1be699. 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/PLC591800286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e5a0de93d0462c6fb37858e34ee230d880fc538a5a93af9a1fa65770ca00b38. 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/PLA812000104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f15e3a35e3435d02892095aabe434a1600dad895afc3719faab41623e6b34c2. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/PLA812200054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b5585c91b1af8004e203a22b6b2ee9c8b91ebbe7d5957ef9ce0b6a3f1f5126. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:39:50Z), 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/PLA812200105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a2eb1df7474eccd2b3d131942f8276fafbe1f30a4113efeb82ad467f068ba9. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/PLA812220054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d0631e0ababb0a29013eaea0664141d7d69408c3c5829df15dfceca9ff2092. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/PLA812200109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328b7f0bd15fd55c2a664d10862c50ad9ee20c2cfb660c74ae3f296f906b3a6e. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:59:05Z), 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/PLA812200110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad6309df4a3c3fa4110509cc6edbd4d6d89710b5c9458a4ea06a50c736730895. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/PLA812200111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x320b3cd9b114ca3d66e13c9189e931ffdf9cdaf8c971d1b29cb1280531c90bd9. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/PLA812200112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0983fadde9c5e47d1fa83095f77997c5df4f43b676cf88540a728c7b957591f. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/PLA812200113.