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 0xc17fe70028b6f076af35e56526a808348a806af86fbc64e68fad9a61aaa33247. Chain 2 (Bitcoin): anchored in block 953610 (2026-06-14T07:58:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/13966aa1-28c5-4850-82ee-2ef11941b010.json and https://artists.proofprofile.net/proofs/artist/13966aa1-28c5-4850-82ee-2ef11941b010.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 0x35a3f1772cbaeddb477cc4052a4f9d188c5d46eb7f0b57453bdc8a7f3ae69d71. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZPLS2241231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf24884718c5f9c4deb12822bcdb46018408ed7a4f89a5c841cb0bf06fa74e1. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZPLS2241234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff812e7610d90f84cfabb300474886fff06278a5edb0a79af085fd7df5eea5b8. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/QZPLS2241240.
Mások gombolják az ingem - Mulatós Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04eb6169ceece0d09c15d72d3a5d94714d14eb25ebe16c638cf2ed59217f348f. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZNWX2405877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c6879dd4d09222e6ec9bcde7eb4a34ae18d8df37209d14ba76e772d18db4fc. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QZK6H2348082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x966492e403d61e423edb5920703c29e05e8f6ae64bcf003f2cc70963e08fc846. 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/QZK6H2348085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc0145531e0bb4a9b4367755d8a431cb18354dab35cfff2dfde04d2cf425c038. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:07:43Z), 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/QZDA62484441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e67dd4a02060aee289f6b6f857f231f27d68072ebfe36f7c278e16d012cbb0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZDA62484442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf6faedc1dd3873692e4a8ada9806c2ebf088fd3727bcb35788ba865c4e205c5. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZWFM2431009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5ff2f99a387dfac68e900aff99d8c31c00a3dac8baf9a092d46a1a637b30c8. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/QZWFM2431011.