Karel Plíhal (born August 23, 1958 in Přerov) is a Czech folk and jazz musician, singer, songwriter and record producer. He graduated from the Industrial College of Engineering and then worked as a d
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 0x62267661885a96f87de69edfeeec9b1528dda8da597e4f22a98ef01580cd6e05. 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/b790a554-4985-44d5-b432-f5dbf1091f7e.json and https://artists.proofprofile.net/proofs/artist/b790a554-4985-44d5-b432-f5dbf1091f7e.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 0x7d07c921567db926d5136fae9585e974b01cd2a4c6f9929a15f712273554e1cc. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/CZA230000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeaff70d5589d082da266015781194e9b4ce8f0b79dc18a2bbcd9989d800d008. 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/CZA230000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e5d12a09ae60fe8a15c22f92bab22e2adcc869b7217dac7ab1c5afe3a8010b2. 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/CZA230000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09382598988997eebf496503a40ca72f19f88321c11dfdb30cc19f79802b3fc7. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/CZA230000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c5a22430c8a65fae3e8d63ae4c339605e5bf39cec09f068a521f701400389f5. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/CZA230000034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7a4bbdfe81af4252a0c08f0d0ace87e4afecdae9d6c8e2f2f7f29bf25a17e4. 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/CZA230000035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc277d13d4bcda972f24fcb1356ddd67d720d26f15a175da5e74c75b5a2733221. 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/CZA230000039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059e586b67f9ae2f7ad3a7a13d25d467788846fc61af234498bbfefadd8bd669. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/CZA168500419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a404d68f188fec57cf5ca0dabb489a0b8dd2a0ad518d5b954bbcef297af76ef. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/CZA168500420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eddde744c9653bd9284a666cf9ccd5f6c1c1523dd6ef354f1595043f33e0beb. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/CZA168500421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4492f154a193c87b836390edb64a43634b5cd2c0511145295bbd55ad7728d32d. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/CZA168500422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4bd877d03ced5c6ddc2739d82e66f019ea513bf85335e6bd2e006cdb83fed31. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/CZA168500423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76df577972ae408b5cdd010ce96620526fc27a30aea13d5c140f145a6a65a209. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/CZA168500425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429e3cfca4e338f62ad96c3949b880b617b3decbe68ac5614e3635b9f6f4a329. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CZA168500412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f626db37ec0fe61cf6d0106fee071ad72a8b69c353330846bcbe2e43e60feb6. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/CZA168500426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b3df6977c1f8886787eac6aaeee4e2129fb1862a0ecb91bdeee459ee604418. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/CZA168500427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823a76d4b465b4b1a7326341f0f3b8fd47eeb59c44597e61178d2d72abbd3a93. 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/CZA168500428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a13da103123e66c38777eaf44f3b5bb6e7f6bfa18ea855d8d24507fe0b0d471. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/CZA168500429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70afee429cc9ca6265b867dd6bf93105bf96a16cb08996c9a9ed2cd4f31e1ad0. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T06:52:05Z), 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/CZA230500043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df524319b2f8d357b03ce1dd796221ab1a121fd07e317a997e72a77d51fbff4. 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/CZA230500095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3bc2c90c75e6af820033586a876bc1c3671c8f818d490cca4bf7abce4e5601. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/CZA230500059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x537100cd3b39b24b23ae4bd207bdd7d1060720e8335cf1a1793d23f2c9d05953. 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/CZA230500071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443458a60af1dae8515b53a92b531a91d60a4b48da5019131076ccd1b8996a3c. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:03:53Z), 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/CZA231201126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc41ca2b12cee945e1230c21670b41ddefde446c283ba9c0bd328393b7af8ce16. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/CZA231201129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bad0d93b45912ee5d4dbea42ff0f217e7cf55721d9ef8f026b7297daad89fe0. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/CZA231201130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f4df79b77beec0bb1e2cc9b9a6f3e2862a2cfa51afd39c89d23d9b89dcad9c. 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/CZA231201132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b5ffb6e56ccc9e770e1c32cbcf5ec623af3e89e5f6fccafb42c745c55dfeca. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/CZA231201134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344a376c14e9489da954d4258a8d69e60d6aa3b59e1e8f9c328bf02edbb63a2e. 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/CZA231201141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5a2b1a7fcaed6334a84dd40deb4bf2d82f208d963ad82caffdc05d40232121. 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/CZA239900220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cdcd8cca334d302fbe1176a531acf68cb9b27ec4113a7cdfa735c816908ebb0. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/CZA239900207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d56265567e24ee2d7f3409ee5772246be61541ce1f0f783df70bd3e62a33523. 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/CZA239900074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a66cfcad7acc3e9ef73c5ca1dd6d0ee2bd47d8475435f30e9aeabf839f7d4d. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/CZA231201031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c48c133c4dc03e2d28a2d18a0a7f6317b321207523b7c9771d686506ef3af4. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T16:25:26Z), 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/CZA239800615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc948a66df84521599b906d3259473a0ce54bde145b36c7d44b4c6bbfa55733b. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/CZA239800623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36900cf57e430f2e7d69823fa672a669968a9437145259d93b6c25a34d9f47bd. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:09:20Z), 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/CZA230200359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae5a76aa34975cc81223407836e81e2af4ca9bfe4c8c8f74c3018a2f83258f6. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:31:19Z), 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/CZA168500418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059e586b67f9ae2f7ad3a7a13d25d467788846fc61af234498bbfefadd8bd669. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:26:16Z), 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/CZA168500419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a404d68f188fec57cf5ca0dabb489a0b8dd2a0ad518d5b954bbcef297af76ef. Chain 2 (Bitcoin): anchored in block 959003 (2026-07-21T14:46:50Z), 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/CZA168500420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eddde744c9653bd9284a666cf9ccd5f6c1c1523dd6ef354f1595043f33e0beb. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:10:16Z), 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/CZA168500421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5461a369d07a8c961b7d0bdb415a81ea9e2f87320b9cc775d242d5f184375a. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/CZA168500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4492f154a193c87b836390edb64a43634b5cd2c0511145295bbd55ad7728d32d. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/CZA168500422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa402d2fb26602e9ea3dfb74304e5e4b22479c171644817602dd1ae8a04abe9c0. 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/CZA168500424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76df577972ae408b5cdd010ce96620526fc27a30aea13d5c140f145a6a65a209. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/CZA168500425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f626db37ec0fe61cf6d0106fee071ad72a8b69c353330846bcbe2e43e60feb6. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/CZA168500426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823a76d4b465b4b1a7326341f0f3b8fd47eeb59c44597e61178d2d72abbd3a93. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-22T01:17:13Z), 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/CZA168500428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a2897f594edd202e74b88423ce2c588a63e8a93b4fbccaa6385b5c9ae86343. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T04:08:16Z), 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/CZA168500430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90266f4529481bf3c7efb200f242de4d78c2e9d0595d66b22d01148f0144995. 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/CZA168500431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b367750602902312c73993833f3c95380a722e02001e5aad55db787c5f044a6. 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/CZA168500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b18452957ea00deb89ab7e255d1b30e7f15b4fd6e9fe71d54db1ba0deb5252. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/CZA168500724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c24a16c473b57ac8828284f720e6df440195c1ce7f777ab890510d3c617a9c. 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/CZA168900283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0776cf7ac3fd909aaf881af92808fcfdaa87170464be3c97f34df6a029c5f0d9. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/CZA168900284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7239b570efa8cb64ccee1a5a4b525d65567d57dd17ecb4fb78aa9e6ad3c5be02. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:55:28Z), 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/CZA168900285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee32fcdb0bd8ef85768967b1d2bc557de0f69f37a20022d95d979442933306a. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/CZA168900286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1ee023f17e40330d0378c6b8c079b71692e3c1772a37caa0cf5f97b562f49e. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/CZA168900288.