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 0xb6717149ed4ab63f84821a4547cfb2e7ad9fb4b198d82da2e484227a68ab453d. 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/5d531e47-7206-4d40-bb59-af56565a605a.json and https://artists.proofprofile.net/proofs/artist/5d531e47-7206-4d40-bb59-af56565a605a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tisztelet Mudd Waters-nek (Középeurópai Hobo Blues No. 1.)
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 0x0cc52052fce88ddfd432666c1d2c7d513afa1245bccd9305826a26d505d41c29. 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/HUA251769401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa23ee9e24d7e1edc8a20f7e587521e25dc8c64e1ef2683d3ba2f73f336740f. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/HUA251769407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cdc0429090e6392347d2cf2126c7dc50f41d034b136b65a7c144a0f6d3f325d. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/HUA251769408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492c55ebf32268f91ae71b37c54babf08f446a35f3e1f76a278f47733b2d557b. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/HUA251769410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d21b6ad304b75b44a533c537215c39333429752a1b33096e0cdad03818aa61. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/HUA251775401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd95fd660395150e412ce6383059f41f8a404fb948719e61e97bb115df6b47f. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/HUA253701002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf2adf6b09aefdd5c97936f5229eed8cb6caea8727d5e2470178ffca35eab13. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/HUA251764801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb072a7c3cdf70b28e124cd94dff2efdcb04d8d80452b3bb6fd55acbbcde3057. 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/HUA251764802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9059fe4125037f6e526ca140158b646c913270c3e4ccf8f7c4c0eae51f35cd45. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/HUA251764803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43fed7a572ac347957e446247d78154fce073031d20ee8de0f9d039e46116b54. 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/HUA251764805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cbb8e7db06413a6ba2eabbffc8d5b43250eb0b14a2912070d0da15a4f2cfc86. 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/HUA251764806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071b8b6bb8fd465e636b882ddb137f3254682168eb59f6d95e87d559bebd07a6. 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/HUA251764807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb72e88989be59ba221af324eaf8357f3eaaa903035536cad083cf99c85d656f. 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/HUA251764809.
Hobo Blues Band: A Kopasz Kutya című film zenéje
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27eea2bf870b334b303530771c8a3af9459396bf2b4702e8a4a866d5dacf074c. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/HUMAG9500402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf60f44637fb9241e0869e32bb2efb93304b2c11ae98019127a95f88f93b4bc9b. 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/HUA320800360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb500a30c0d3f97f3ebcd10169dd7d96db0a69a9ebfb07d51f8860ed7cfa76b66. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/HUA320800341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02647a767edcadb66edbd9da34c20e3c080d62d5a768f6fa96d2b85e6f21345. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/HUA320800348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525f606b82c0cdc558b98dceefe1656916f8371b1b6c3dd7fd1669a2f20a9765. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/HUA320800350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb63d2db3a4a5fd604e93fa2dfe4b59563e3746eb71f2594326c77c019dc6437f. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/HUA320800355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65117faabe35db6eb6143a4f2ecc1d419eecb84a57e7274a799b1fe3d1218d34. 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/HUA257133101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b801c77199d66249120d2e609120a25ab593b34a6fcda4dce809b91edef2161. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/HUA257133105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad40a1616cdef6df8ca6d2b154f77c44f93b2894749294b6800261abdfbc3067. 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/HUA257133106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9366264344aee37632f2bc142f1eacda0a1f63af8979ed439e80371e044253. 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/HUA257133107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e52e6209ec4d6986532d9b334773451febfaddefe2e7d66602908dcb5e7038. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/HUA257133108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5121e775dd71a0990b8172e17ca84f16e3ec6589e5f5df215695222c23f96cf. 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/HUA257133109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f9967f63ed968cf27e58183fb9987834d3c97156e6efde934e44d466b2123e. 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/HUA257133111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5194bc2fb2d0ea7f10a934f9405c225b1b4203441a55f633e59a6223e894b3cd. 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/HUA257133113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba44aecf818c5a5e76be638dcd6edd650304d50eeab24aef2c1b4fd78f786a5. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/HUA257133201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4cd362dae1a9f7ce8aa1257e3882849a62c5f3dc0e612c899503ff6cc12e20f. 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/HUA257133202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867130e6878357ea2950101fb9ecd66bd5dc5533b6da18764adab842be3731b5. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/HUA257133203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f2652d762b0e034ccd4754a732b6203363f06f55f488a598f1e23e61bca9ab6. 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/HUA257133204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752bc1120f43c7435f784a7b3904c6b77561f68a408ef85413fc4913d29d0613. 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/HUA257133205.
A vak zenészek kara lassan lépked a fűben
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52d71eb2f37cc2fed1d2f7813b689106da7f37f632598b00cec99da73b4f2a7. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/HUA257133206.
A vadászok bevonulása és az ünnepség kezdete
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7669a87bf535968b48d0f35bcab4d13bc843c7f86daed3775eb0e18f4ceaf4ec. 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/HUA257133207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf24da54fd1e775f1687f0262a84dde7a5735d92758ced0ed3926d510111aff. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/HUA257133208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e4a9f0085ea2b4e70d34f07eeac67a14c2f51b2659721d2e42d23dc868d72c. 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/HUA257133209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dceb05d2213159e7312389abcf5aba4cfba1ec5872701a17756b34b92c3c230. 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/HUA257133210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab484d93005a3e92a59804582f7bac74913752c79ba54660f014d1c9c7e3502. 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/HUA257133211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8491a2af25e2347bf6afca6d12df1b14b4c01766e7bcad63a2bb45259c7a7a62. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/HUA253791810.