1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x8ce5916185cf35acd7d30c7395feb2ddb0c66027d99b25870242921fff5a703d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a5bf16a8-53e3-4f6a-999b-e49458dc0a24.json and https://artists.proofprofile.net/proofs/artist/a5bf16a8-53e3-4f6a-999b-e49458dc0a24.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nosztalgiázzunk Együtt, Vol. 11 (Édes Kisfiam)
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 → block OTSBitcoinBlock must exist at that height 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 0xa264da3fb79c6ba1dfc4ed6095ec41a4bf3543ff1caa14f3eb79ae1b2010d4e1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/HUC301500566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0b72c7ebfa7fe3be0275babff05adbc8c0feab95115c520df3f30dc0ab01fb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/HUC301500564.
Nosztalgiázzunk Együtt, Vol. 10 (A Régi Szép Melódiák)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4974d6f12dc7cf898f866c0865ab769a59ca07f74b012995d1001de92a6b0c3f. 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/HUC301500579.
Nosztalgiázzunk Együtt, Vol. 8 (Kicsi, Gyere Velem Rózsát Szedni)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9491c4bf23d3c22d07efc4c6202aaf910ee5f03733ef6ba97fe3d3b0850172c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/HUC301500544.
Nosztalgiázzunk Együtt, Vol. 9 (Hull Az Elsárgult Levél)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3046790104c43eae1008d99d64adaa2e980fcafe7d7d198e42966a7cff3d32ce. 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/HUC301500498.
Nosztalgiázzunk Együtt, Vol. 3 (Egyszer Véget Ér A Lázas Ifjúság)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0712cc543967e10ce3c6ceecb7d4049bbab0a798c65075c5c2a2c9089cc9964. 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/HUC301500476.
Nosztalgiázzunk Együtt, Vol. 12 (Szeretni Bolondulásig)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8866715bc50dc0a7a545e9a88bf0d2f5c2a1249e2aa76bc20895934f22535ff. 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/HUC301500532.
Nosztalgiázzunk Együtt, Vol. 1 (Zene Nélkül Mit Érek Én)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385a81cc822874c056d020ae8e68aeb832e223995629013c573a483999bdb3f8. 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/HUC301500535.
Nosztalgiázzunk Együtt, Vol. 2 (Állj Meg Kislány)
Nosztalgiázzunk Együtt, Vol. 15 (Kicsit Szomorkás A Hangulatom Máma)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbceee8cba53701e71b16d79e6f6db2435acbd064f0fd15e7bda3b7a69c3b8ab1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/HUC301500528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0b72c7ebfa7fe3be0275babff05adbc8c0feab95115c520df3f30dc0ab01fb. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HUC301500564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4974d6f12dc7cf898f866c0865ab769a59ca07f74b012995d1001de92a6b0c3f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HUC301500579.
Nosztalgiázzunk Együtt, Vol. 6 (Múlnak A Gyermekévek)
Nosztalgiázzunk Együtt, Vol. 5 (Mint A Violák)
Nosztalgiázzunk Együtt, Vol. 14 (Egy Szál Harangvirág)
Nosztalgiázzunk Együtt, Vol. 13 (Aj-Jaj Fekete Vonat)
Nosztalgiázzunk Együtt, Vol. 4 (Gedeon Bácsi)
Nosztalgiázzunk Együtt, Vol. 7 (Csókra Hív Ez A Csillagos Éjjel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62c7898437bac874bdd966a1f65a7662921da4bd81233591e6d10158122280f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEU240605700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe412f9c8b531d726e396dbb50ad8a833a40d5488cd33a79d17b828136e0da0be. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEU240605711.
Égi Trió (Szécsi - Máté - Ihász Válogatás)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f76a620f2fa77261700a4a5029bdefd077ffbd11ab8f874c72f3fb7ae4a7b6. 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/HUC301700270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756e5cdacf7c71098a734ccb23207ba46a762a5c4b34810309a04ef69377b86f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/HUC301700271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c3c195e3f2bf6ad06bd540fb213a488ec0736c5e564ce1b91d8e963784c65a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/HUC301700272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e67e8561f0b3b58287e8726828f438f62b4196690916ab3a86943c794a95644. 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/HUC301700273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e8434727756efc9b5793c7dda722e9f235748c41f1f8faacf182abe690397d. 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/HUC301700274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157732bce8707615b3541d9011e9ab0b6c60efbc7beae5ff0a49ff0092b4f5f9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/HUC301700276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a8faee14d99b6c39fd7d20de9ba05fd7437eb77c3f5b1cf5cb59292134634a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/HUC301700277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35a852aa7f386368c7a5c7474ea579f0dd3bdcb8a62ea319b63b162392ff7db. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/HUC301700279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2d25552b780a46f016537f54458a5665c09e1e51233fceb6b0cfc3643b0146. 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/HUC301700280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b65585d9445844fb5a054ea7ccc7ff2396a176e3004440a3e2560b09cc57af. 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/HUC301700281.