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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e3103cdc722b30a64c2f751be204111016f8ebd50c21395dd0735f3eeead56. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c35c7e9c-dc01-4e85-9416-bb8eabe14f95.json and https://artists.proofprofile.net/proofs/artist/c35c7e9c-dc01-4e85-9416-bb8eabe14f95.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2796a13eb4397c8a423cf5cb25910ac2c348ab52991293b1745b552abca7ce61. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/HUA611801225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d086b691e2746285c2dd1aae6057d04245e46274021e3648e34e62ad26e1fa5. 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/HUA611801229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66c832add086f82b95c399d9e60b91d57b8205bbee53f7a7762411a2367f7c1. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/HUA611801221.
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 0x334687aef14c77f3c6bcea937c86d311e031be3d99c73ddbd268b99716705600. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/HUA611801222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ce6fb35b9df660298eaade018774021940a9b163c9470012cce21482a63520. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/HUA611801223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa096a69147900c810898f4d85ec69b08416500e025a805a30b24704160e4f560. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/HUA611801224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39bc88a9eebeb7406814f949c71d48a7641f3826be9ccdb2a2bceb3617738b5b. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/HUA611801226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454a9e673375885daad0783f04327bd7f010376aaf7951d0b5965d7aa14af863. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/HUAHC2000085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0a03843f6f38dfeb05ef57c8061c059efbbe935c9a4b69c0acfecfbc880d63. 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/HUMAG2100093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec3eed447d298d2c5189539eb09e29cbd4bbf98e817226fb71de98302f07cea. 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/HUA612201862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b5648890bdcba9b6ec96e0c2ef41d79cc9e786ecd1141c01f8e5af4c830340a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/HUA612201865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58ea6eb8d4ae2ebfa247e49348fe496110ce94baa5c4b7c6282d12b051bf023. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T13:48:49Z), 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/HUA612201867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0acc9304b84a7044dce4bcebea6f4daa87c560bdb6075ca10a9f8edee42e2eb2. 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/HUA612201868.
Én a bánatomat mindig kifogom (feat. Bangó Margit, Curtis & Takács Nikolas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408e2197c9a7f1697817e6253f8be284c4e41b9da0f3b6ccfb23b7c1e481cb5d. 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/HUMAG2400093.
A nagy pénzrablás (feat. Kökény Attila, Burai & Sárközy Gypsy Fever)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec61aa632df53ed00a9d10ef99313b67c21173d4bd22f69c1c424eb21e5d117. 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/HUMAG2100253.