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 0x1f69fad82c1b7d66ffa0e59a297e1352a2688d9647ac37a34271dfd864b13d27. 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/318e9aa1-0c48-44d9-b4aa-cae66953621f.json and https://artists.proofprofile.net/proofs/artist/318e9aa1-0c48-44d9-b4aa-cae66953621f.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 0xe76cd9cf4657c666a716f295e55d9517d1f790d511e130cb902a57c4368f7d48. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/UST8K1719236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef9179934d204d64509613ae7231e010870bbb145ef988517aa679670f0335b. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:40:40Z), 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/UST8K1719239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2123951d5c757e9543d871cbc56e3629f0d8813e28d263d9c73fc947d0f885e. 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/UST8K1719144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9006f3d14c7a3f3105c21e8d6ddbc4cea1794522e117f423fb135b8dc1709ac0. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:06:26Z), 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/UST8K1719150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b79399e0e1f75770b7884e0f8124c3187641a342b8b4db734280ba973096c9. 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/UST8K1719260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0fe018756fdb35f0cb7c086041ba4ce42bdf96130b803fff4840923d188527. 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/UST8K1719322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a86a9ca7cd3b40ce428d2376fe385e59c844c7942c4617e209eb22d10fb56a6. 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/UST8K1719324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bcfa325912ab4b7a6f11ee083689ab0267cf1598615941f4a8cc8f6d2fe50f4. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/UST8K1719325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908cd056e86d8d9e959fb4486529ee1e06d952f7271e15c75b2de1326a6b8182. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/UST8K1719326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d630cb59776701c12329869434cfc29ca5773e152f396bad778f6c8bea27c4. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/UST8K1719094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9f988727f56280d6cb9bad4e6284dfe1e821d03e3abb6e881739b1e2d8e9c9. 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/UST8K1719099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6bf650f749393976469cacb8ba03c5189e35ed0add5bbffa0ea10a91fd87e3. 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/UST8K1719100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff82a35f1c8ec3a9e5d1bef29f8c23a95975b090cac50cc9993a066a139fe205. 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/UST8K1719105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb59687b51b416d69c1306105f6777c180e18988db42ed18ec0b91d19e0c1eda. 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/QZHNA1901264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf207e912ea25a96d75e76765174983a8a67606c23daee43d1112b08d807e3f9a. 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/QZHNA1901266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d3013d4c79c0db90483d60c3e8ce31365bc1639e4984aa8b0dd13ad77b4085. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:38:31Z), 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/QZHNA1901268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24228fc703bc13ff8e5147c38c92938f2dfd0f4a93faf92ed9ad5e15a33c16a3. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/QZHNA1901272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b49577b5a66c2d95204228285f5c938199b2e4f05e07642756680758f0f84a. 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/QZPLR2150095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6fbf91c847aafdb9f43623ff8d7dce3e8b4bca70334dc5cfb47f5f92fb7bf2d. 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/QZPLR2150096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x208b4f2f5e646860d70d4208fb141a46a37aabdb06f94282b1fb845e2939ed65. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZPLR2150097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626a95a5a62015d99e704e4e467cbe6815d1382ce0ed8ceef5c795b037845445. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZPLR2150100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da7ec5d71fd40fd3139339effe6899aa162ce18396416248baed7a42b38d186. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QZNWW2125763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe141ef49c000eae47d428963faa1ea6b020b1c5eeadd92c5df98708c1640649. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/QZPLR2150101.
Naživo v MMC, Besnenie zbojníkov, apríl 2022 (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f679139e0c7bb94e2b54296b792b15d1a755ed443b5614fe48e62cb69880792. 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/QZWFU2441345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281a2b9a0c3425063cc5c9fdd0a50a2034e7e631d012077d9e16cfec471df8b9. 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/QZWFU2441346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302505523c228d0c11e7c6fea87d02f983f7b75b2595b0f84620642f242d7fda. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZWFU2441354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6aad41d9292aaab56c71d7c7006dcb6e2a141d38a85d1bf0d7f75999f4d006. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZWFU2441355.