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 0xac6f1033c91d9b23be6d18d1a18de82988b1c0856470f31d67b9d8830d8d471c. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d05fa5e4-985c-4f7b-9492-df76547cb730.json and https://artists.proofprofile.net/proofs/artist/d05fa5e4-985c-4f7b-9492-df76547cb730.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 0xb963844851894c1075ceefc8fc78f5f3bfc4132c70fdf4b77b0f480bf8bc11c8. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/HUMAG2002468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x406c1c927643a65ab7df5e0a2b3b09f6695f9806a90a7202ad4fe92766656231. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/HUMAG2002472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a812739db7de0eb05001c7fab22aa842f06a368b7f9df88cb6ee3aa8ff65c7. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/HUMAG2400123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa195c4f352b259bba1141a5d97c23fd34b10af20af115524bff1e24262752615. 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/HUMAG2400124.
Szédült napraforgó - ÉVA Életműkoncert 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e151b02d194e61ca33098bd144ecc21f6f54868d4c29e998d6a8b7a9bc5f315. 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/HUMAG2400125.
Holnap hajnalig (feat. Végvári Ádám) - ÉVA Életműkoncert 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c93ab5f0d55cc0d34372df931a66fc68912145bebc0453c9d9a5f3e665191d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/HUMAG2400128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2079f23ec2400e15cd0aaacb4e215bdb186e976c1486d1544d76eac9e4da3ee8. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/HUMAG2400129.
Visz a hajó, fúj a szél - ÉVA Életműkoncert 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1a7c8a5e4bba1fab88e83c392b0759338f91292fd9991c3b642ac470a072d2. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/HUMAG2400131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf06f432b9dcf02661d32848cc420245e3a674bf8f5426b30bb2cf4c6ab1e7a72. 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/HUMAG2400137.
Hétvégi motorozás / Mamma Mia / Nem szállunk ki a hajóból (feat. Szulák Andrea & Náray Erika) - ÉVA Életműkoncert 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e128c2dada9d61a5c37e94070b09f6f3f58b02c072f3c98e2c4a19b73fc95e. 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/HUMAG2400140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2a1554d3161eab24b56867684c2c1085e5176ab803150d4f3b9b83439a10d3. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/HUMAG2400142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d045b56283d1e50698450b8ef45c81dc5f377f08697a47cd921bf4cf665b58. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/HUMAG2400143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b58abd158c7c09aea5a1f4a3b03927c88e9d0b884e8696861f8194ec0dbe1a. 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/HUMAG2400144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaecc8ffc118b4f1e9482390dd29253d68f1a0391ee04441767b3b6bc74e9dea6. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/HUMAG2400145.
Don Quijote (feat. Neoton Família Sztárjai) - ÉVA Életműkoncert 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0271caab17fde122532ed00b8596945daaa6b9f3d815c17821ef940a4894fcc. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUMAG2400146.
Nyár van (feat. Neoton Família Sztárjai) - ÉVA Életműkoncert 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9020f94449e054d1a856a3b194bb0f26bab844b283b22632a9bbda54e50b3c. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/HUMAG2400149.
Kétszázhúsz felett (feat. Neoton Família Sztárjai) - ÉVA Életműkoncert 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd316b60881286396b19de76f59dde5d773ed71317fbcc324fc018322579598e2. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/HUMAG2400150.