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 0xcd0e2148dfe2ad95221ee7d36212977c6f164606ed568f3d9958a4143f17a270. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dc8e34dd-a794-4333-9103-13d60b6f8113.json and https://artists.proofprofile.net/proofs/artist/dc8e34dd-a794-4333-9103-13d60b6f8113.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 0x7d91ead2b54c9b99578eb2c396f0407c596d32b6531d46cafe6a84319589c87b. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/HUA7Q1500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71aaaca8f1625f5fe0e9d6f40f7615e93b1f88d23a35bb8593ea7068e1586aab. 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/HUA7Q1500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d932171c1a496c35e620b9450307a1db072c392a965891fbbc0b7c02338201a. 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/HUSZA1700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447e8d822e206a28b7b3ab392a857296eb77a9993fe76e32dba5c02e28ef933f. 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/HUUM71100193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba57fcb48eeb4d5c5c3535e43bcc7434b9d71bbe0082258ecf1c3f020fdf2f9a. 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/HUUM71100194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f607ed02fe26df56fe29e0cb5aa8bfb2c61a043633c81a9e4f6e87819ff534. 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/HUUM71100197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb534d68a81484625a7867508b47bb3d192f0b1ec76b5d5e1734ff4c68bd8277. 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/HUUM71100202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8528e42e154d6962ae22ba88f54777ffd94aeab2dd43e8f688766b1fcd78f8. 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/HUUM71000028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce86f56d11cf7a6dae90b5b67f6f67d79cdd0534d7ce23aed93eacb548be8d53. 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/HUUM71000029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e64811bc34fe05d3b57e2d2a6d0a1aa1a8317b2c5d2153ce2a1276395264a99. 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/HUUM71000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x951d25331286bc07d8522fa6049c388dc34b7c68c6408a40d1d217981836ef64. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/HUUM71000027.
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 0x7cf832b82738b13e2c19fb9924c10d20c9740fbfe0f6cfbfbc1983db65739d6d. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/HUUM71000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3161b736b42ad83c70199d13133d7dd630f8b45a99b27b8f64dec2eb2f9a97. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/HUUM71000034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9198cf64540d474bfd3e73f1185a37893c1f2a249e350f5bd0d202e549bfc8a6. 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/HUUM71000234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b48c85c790035fcdfd8793799fd59d5502ebe79c158b0c6e44409cf38e406a. 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/HUUM71000231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07eb2a3a4a2b5f6987800f842f072d43efcde8a8db573e7319a57dc64c0888f. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/HUUM71000228.
Azért vannak a jóbarátok (S.Nagy István leghíresebb slágerei)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a67114502e6dcda540d12fceaf201a712ac101a37b5939173d4ac5ed1071a4. 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/HUAKG1700900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17d4e0cee8bc0997cb00d1aecf84bc399819f25660ccb794bb15e60ccb1ca0b. 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/HUAKG1700904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ac37dee112d05c31ceaf2d3d5edda6f2c0628f97dadc6073b6dde6e6c016d5. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/HUAKG1700914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48416f6787df7aefddf77bdadc9622ec43830211ef3f2134522ad7ccab7cbf75. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/HUUM70900133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462b6736e8110f010fad20e454ee15854d4200a632cc68d264753901da878414. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/HUA010400508.