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 0x8f4fe6f9b2ef28bdf6f1862272298bbf43ed62d5e2010807bc9d1167446beff6. Chain 2 (Bitcoin): anchored in block 953794 (2026-06-15T13:43:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e08c2406-13b3-4977-902f-69250a84ae62.json and https://artists.proofprofile.net/proofs/artist/e08c2406-13b3-4977-902f-69250a84ae62.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Mulassunk Együtt!, Vol. 14 (Rossza Vagyok A Világnak)
Mulassunk Együtt!, Vol. 42 (Száz Szál Rózsa)
Mulassunk Együtt!, Vol. 38 (Nincsen Lóvé A Zsebemben)
Mulassunk Együtt!, Vol. 36 (Ültess Rózsát A Szívembe)
Mulassunk Együtt!, Vol. 32 (Csóró Cigány)
Mulassunk Együtt!, Vol. 27 (Piros, Piros, Nékem Tilos)
Mulassunk Együtt!, Vol. 11 (Cigányasszony, Jósold Meg...)
Mulassunk Együtt!, Vol. 35 (Itt A Piros, Hol A Piros)
Mulassunk Együtt!, Vol. 13 (Hogy Lennék Meg Asszony Nélkül)
Mulassunk Együtt!, Vol. 15 (Piros Lett A Pipacs Virága)
Mulassunk Együtt!, Vol. 12 (Azt A Kutya Mindenit A Világnak!)
Mulassunk Együtt!, Vol. 31 (Holnaptól, Ha Fáj A Szívem)
Mulassunk Együtt!, Vol. 29 (Necsi-Necsi, Ne Csinálja Énvelem)
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 0x59d882a0fd31c4ef555d998978d97a501a05858c843d96dbe190cd66c4c6df5b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUC301401010 — a six-check JSON result.
Mulassunk Együtt!, Vol. 25 (Száz Forintnak Ötven A Fele)
Mulassunk Együtt!, Vol. 34 (Bánat Nélkül, Vígan Élni)
Mulassunk Együtt!, Vol. 30 (Szívből Szeretni, Könnyeket Hullatni)
Non-Stop Mulatós Party, Vol. 12 (Hej Daláré, Daláré)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3150957ba14ca604b10b3948ed1d2b4d0b0e4376dbf38ee0b595a4f0ba54c2be. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUC301400803 — a six-check JSON result.