Buty is a Czech music group originally from Ostrava, formed in 1986 by Richard Kroczek and Radek Pastrňák from the bands U238 and B komplex. The founding members were joined by Vít Kučaj, Ivan Mysliko
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619b6bb9d1e1d1ab9afbc25a042f291f061187a9e4f2da41156ca9fdd5d3b552. 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/a81bb605-dfb0-4d8b-97a1-535c03461e74.json and https://artists.proofprofile.net/proofs/artist/a81bb605-dfb0-4d8b-97a1-535c03461e74.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed4739d48200a35ecf16e2c36326037ed4e08e9bcc92d55e9138d5bdc758233. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:28:57Z), 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/CZA239200334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a7eb3815c8174bea90530a1f6b766b8c1fd6cb63950fa2bef7b468b4d368af. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T13:04:09Z), 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/CZA239200335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8272ce6e42198ba176a9f9b331aeb0740f08d9c6cb99d516a47da2238bd92a6b. 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/CZA239200336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c63cf68cb4747a84649e2168d329174dd866320f8c2e701b916b71250541170. 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/CZA239200339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295a261db890b0d7dd810f1e97ed6dbfed53d238cae1d82a9d086825d062ef5d. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/CZA239200344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80fe1b38ea2cd73b9567d401b327557934b75882c53e59069ed922ccd3cb88e5. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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/CZA219500201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62e05487440a451168c2a7a23ac24c8a8206a013a394f73cee9feee9f8e72f2. 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/CZA219500203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5bc0cf39f4c2260ebba4b54cabf9a906c13cca4732ad9342799785e347d099a. 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/CZA219500205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40c91d594aae316c22ad8d703629c48f6f83bc8a3c9569d48bdac0f5c5f5d04c. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/CZA219500208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241697ed7187843f5aa911ac79078f27c68a14f5948a7f345fde8d0faaa3fd32. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/CZA219500209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92dd7a141008e0c8a9e8f62edff25b0a9fa6084be7a0d541de47f3e9ed130bd9. 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/CZA219700302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729c842d668305c0bb1861bcbd8a3510218265b0de6f69efe14de4526ce0f0b7. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:52:23Z), 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/CZA219700310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5beef335827ea254d9ce78a3da051b3dd2518897542df42c9322a83432986618. 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/CZA219700311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c48d747f006241a7e77d137d0cfad1a276c22def38c3925577f6313352b1f6f. 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/CZA219700313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2354b5a26fd697944840441f4a05ea96a6fc98da0e84800c9d086d167f28fd. 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/CZA219700314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbede2dccf8298d8e39625c3a3c823f546f1df573e72b8d7f4da7e33adda2adf1. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CZA219900328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4073405800bb9d4ee61d2092892ea3e236579515607912eda932cc7c7e8215f2. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/CZA219900330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f71346f8948caa70c0055e7fafa867c8600605d7e17c4651ecd7ebe0e4b2087. 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/CZA219900331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef9cec53f805834ebacee6f9eac5b149d0dd715c2a7a6837090b4c4eaa28e77f. 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/CZA219900333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9435e8243132fe781ea84600915596ce46334a757125c276125b1616c29c586. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/CZA219900334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4587c2fb732bbf7f4657e817a7891494ffc8ea58e937f39bfb929d6ee48b705. 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/CZA210000928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11735d43ae11e8af0ae52b7a55c7b64f99298b31ff45d963ef5d1b78f9573a6. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/CZA210100450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c4744460631ab241ae78b0c499426d70559105c0646c9dad7db7485eac6122. 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/CZA210100451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7447ec88fa0de548311fddbebb8367aa7ce8212c540392181ef14ca4164821d. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/CZA210100454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8379cc541261ff0032a7684bd9a5453d7d1ce65e9893126b6a5af331867a3b67. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T03:50:39Z), 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/CZA219500204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c19bf5b8e235407e6f6e021fd159735e4aaad8e94d185a857829c46fa060f74. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:23:02Z), 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/CZA210100447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318a47653c3f8fb81977d2c5648c11182a0ad1140dedac67b7c305d8d7cc6b3a. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:54:41Z), 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/CZA210100449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x272b1302c030711ce0afd7b9389f0a3c01a90e2dca268c3841bae23827fa4aba. 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/CZA219500202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbede2dccf8298d8e39625c3a3c823f546f1df573e72b8d7f4da7e33adda2adf1. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/CZA219900328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4073405800bb9d4ee61d2092892ea3e236579515607912eda932cc7c7e8215f2. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:50:43Z), 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/CZA219900330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a8a9f96ed80bb5bbe4980b3af9457dac3d46f0e807696fff462752d2626ef4. Chain 2 (Bitcoin): anchored in block 957726 (2026-07-12T16:04:28Z), 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/CZA219400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84560ff0ec17d95ae3ae05a7a7ed8a1364406170e67fc2a253f3aa95947bff88. 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/CZA219900336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729c842d668305c0bb1861bcbd8a3510218265b0de6f69efe14de4526ce0f0b7. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:43:23Z), 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/CZA219700310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc86799750b87d56091ce6a85bd1f75c7216d7a7ca24032999a696daecd90955. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/CZA219400123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3783382e54b7acd80202b916b9d6893fb645b7c7273175d430b536af70871656. 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/CZA219700304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92dd7a141008e0c8a9e8f62edff25b0a9fa6084be7a0d541de47f3e9ed130bd9. 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/CZA219700302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3e22dce21eb86f6ba22e07c9f19490b9c4648d4f9a45ec8c3006872837a273. 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/CZA219700305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba171d99c31e3dbd8a3ef46a2000d31f4a43a19c7b4ae30f2356e65c122ee7da. 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/CZA219700318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9175cb12c470f7354663fc91c401fa4bfc8c28c0b4e7f61dd5f33c8a58e520e. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/CZA219700319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6a51c5161daaefd2d11dd2a3852fb06fcea4ffcb0f0452c3d121d2633fc24b. 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/CZA219700303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4acd84fab4f98da05cc083c0725c8b9620e89aa3a5a4ebd29d39f306ba7e7587. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/CZA219500206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a377af9b32ca80796016dd949295ba938f1525756f8aa2ecdba6c8e21c4bb2. 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/CZA210600295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9842a4b2e7b0c0f5a3cc758e4878b5cacdb22cceda3e7c0fad07617cf113c96. 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/CZA210600303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe743541b0e1e831e320a227ef6281ef61668c220ce8800d26fd5e15e00c10884. 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/CZA210600301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57ecf1a0b74b7ec799e9d782d38fa204cced6916813968859e635f24d10d821. 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/CZA161203160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x413fc03f1b5c26176fbe73fe4fb9f2e6e545d58955dd469a111ace71e38ae817. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/CZA161203161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f3ed7f63e54f649727144ec4aca4eeb5f98635d92f4ad7f93bea9b01d033a8. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/CZA161203165.