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 0x85dfa7a254f04cb40d54c4d8edfdc9b2b38427f34744bffd30b181a668fcf509. 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/44a3b958-61bc-4c4f-a9d5-b1680e61ab92.json and https://artists.proofprofile.net/proofs/artist/44a3b958-61bc-4c4f-a9d5-b1680e61ab92.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Egy darabot a szívemből/Máté Peter Emlék album
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 0x71bf22f4c2118b9f224f581ada012b95fa2cffc49c8784d4b4d1ef6678f5462d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HUMAG2006492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c39ca1e891c82033c58f8e48923f337197f7725d006b74a9d2a2d4f5e88cab. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/HUMAG2006494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07bb22db365db9e663c4b953ccda52fc98c20ef18837552be26dcf27a91e6cd8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HUMAG2006498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec13424115acb5016d4fcabf392c729987d54fad8a754bf901905275bd7c62f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/HUMAG2006499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77453cb0991b2e0a27cd3a46671d43afa425ad368f510fd7273738a63b2b39c2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HUMAG2006500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1511822d38e9a786d8d536de81c90369450328f86577152d8356b7188250229a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HUA321000183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb93e932b95b8ed5705dff522b9106461330ecaedd71b939b2bb9ff0300773a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HUA9Q2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x189e98eb55bf15c5776c98d9b94cdddb504eb5af4a4c80ba9cc5da7276951699. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HUA181808701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa4cd57db89ea2cc8be51935461ba0c6d1be3b59505ff44cb1bafb7daaa0736. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/HUB881707113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dad31927e7b460cf6c80d9db5c1eb573f4e3fd38acba8a874f6f691eeb4043b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/HUB881707114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b5a3f7d7c66980b1217fb170c5ac1e4abc90c546cd7f25db2bc663d5d89713. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HUB881707117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d33d01b106de9d3b2546478df68c89ccc7353d095aa790617a9adb7325d13e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/HUB881607119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2232069742532ae6ffa2a71c5c66a20cbefafea36186172dcb775402a02dd87a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/HUB881600302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23ea76cf5b862e9a5726225fe3b3f2d51979dcdede5c0af073bba867b785133. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/HUB881707127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb187952ae83409a78213422080b40a7721a2bce5727cce4f01852a845e5ee84. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HUAHC1900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8300d7807ba39afe3eb477156bea0af3a9fed3c2a1479314399d70bbff1f415. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:04:54Z), 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/HUMAG2007284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc30ead1ae0cd0cfb8182a156740ddf60cb438e12bbde455545e0143006ba42. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/HUMAG2007285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a330bc468de8179eeef88af47afd3114edfb9099c0c37c2b956cff08bbb08b9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/HUMAG2007286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33012696a1bb767efd50368c3057b54680fae4817e6e6c76a27273b90f35903. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/HUMAG2007287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90941058a8c2fdf778b0ab908eedf121b63124fadae2e477a76265d37809cc1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HUMAG2007288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0459c216d82f120a3e9c634dfe52d102aa1325ab9ea62ac1e97125e19375ac. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/HUMAG2007441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x378e31a6308bbd580c9c2a16e95538a237e451896ea278b1556685e515bb5512. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/HUMAG2007293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450c37aa2abb66625b1f56b221f46255ea14b90470eb43b935d95130b575a0f4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HUMAG2007297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1e9fbd82f18819c162038b79c1382a56e1c9f26165e4bdca84faf188db4c67. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/HUMAG2007298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ffcbc9adb5589daf56169c62b2c8d652007dd16e14402ba1db9738912b3a3af. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HUB002000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ff8afa34e01c9c5032ee66a2a8d0787e93cc0930180b9f191590b401a0a7ac. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/HUB002000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0434c22173fa2f49b1264de865b48dfdbd1810df9791763eb2bba00e4b4865. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HUB002000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0e42122ffbd221c318d1e4519a6874fccab0b2c83634ac00c624df27408cfd. 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/HUB002000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f63c8f5687adb0b577012adcc10f92364058bc2da154c77cf0824d281a3096. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/HUB002000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5bed12d9a168fe2cf2c05d0e9aba0c290d481002804e973045effec433a302a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/HUB002300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a2ab7420a6a97dcc2a93d01ba6f08d85a9310cdd2bfbfd163b1619b44be76b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/HUB002300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594050f175ee104ddd010aba8fe457eceb91e1f93abf6ac209082c0997e77356. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/HUB002300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15c026afd296ac3b3eb0521a8e79e962f759bf3b3f8f0b3446beb22e870f77d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/HUB002300017.
Mi Vagyunk A Grund! (Aréna koncert 2018. December 29.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ef9dad081997114ecfac4e9dd7d1fa5886cf5efbd209be72b5c7a1d847c2b3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/HAU181932514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d9b142d40fc0dc7edf83c658a238aaa45dc1e2a226301f61fc20aa9c905d8f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HUA181932516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb11a6aaacacdcccea2f72e55dba980c56c2f46295fae7e52f88d7a52a84dd81. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/HUA181932520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63fbf3319c720fcc65f142b52d11c0358152b4007a33bba2b6707f3c8de1b71. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HUA181932523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404398d3be255c4c1e23faa5ceb54a6af7338f02fb92347c54ae1bc533d74773. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR96X1807743.