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 0x75e6c32fcea829c006bfcce8231f5cc266737c98f4abaf2034ac1e961971d537. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/957c2e00-8770-48d3-82ec-1507c711c689.json and https://artists.proofprofile.net/proofs/artist/957c2e00-8770-48d3-82ec-1507c711c689.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Legesleges (Erdős Virág Megzenésített Versei)
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 0xdde67cd851b0a0e2289cacc2a4890ebca0c5d11c39c362d3a1e890784bc5cabb. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/HUA501300545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427e81e6e0e3c615402f9b48b24092eab86d35ab96f0991db9cf6596a109ce81. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/HUA501300547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf48c15d71029790918ec8a7c7ee0ab65a2eb67bff98c9fab6f6bd95918e0fd4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/HUB071601887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440a59ebc048b8102a1b219ed924a28dfb38866399b885a1f42e7be18ec8a9a4. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/HUB071601892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f27f0c811f7356c933c8a64f9c23287a3a38658a5ef960b11feeb960e5dee2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/HUB071601894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b5ed8b40dfd0c58c4790191db736b7cb042670dae448badb8c0ef100ff077c3. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T09:54:10Z), 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/HUB071601896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0cf198a346b59d214f78ce0fdb77c65ae6ee2702e89493abe78ce781c09bc0d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/HUB982000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e03511c24b820f0c67789b7ae775f4dd1ee891e1afc818720ac1a3a1070fcda. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/HUB982000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a462b529f699b878b935f01f23d924658142c26268640f8e13ddd872e02083. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/HUB982000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186ba7cf8c8f361f63cb059cb8737852114c4eabbf2c007a2fecb2956f9eaa5b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/FR10S2368193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a2e1898c67c9fc64b92c085b7e2dffd102fa32fc0a557d72e281581c55abc24. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:58:13Z), 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/FR10S2368197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0840020221b7e16fc022a1b449402c73dcb67ad6359860309000eadde29d7b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR10S2368199.
Koncertalbum (Corvin Művelődési Ház, 2024 február - Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0e42122ffbd221c318d1e4519a6874fccab0b2c83634ac00c624df27408cfd. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/HUB002000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594050f175ee104ddd010aba8fe457eceb91e1f93abf6ac209082c0997e77356. 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/HUB002300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf867c3b7db803a72e427bd8d381650fb6ffd75fd91ab49d8a6d9e85867db7173. 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/HUA501500569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c97f7a7d738fa1211c3618b3bf66dbd2a3e59233da04c2a1fe60034946c521. 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/HUA501500570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4d7d03b98dfbefbf520fc7c3e4192202bded859e58d1e34e1b5c2c3dacf730. 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/QZMER2501020.