A deficit is the amount by which a sum falls short of some reference amount. Economics Deficit (economics), the excess of an organization's expenditure over its revenue Psychology Attention defici
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 0xfb71da36d6be840eff8da792059e34912fddbaf661fa3ba628f712a35cebbd67. 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/b31da30d-b087-4fbc-b023-e62dd2edbd35.json and https://artists.proofprofile.net/proofs/artist/b31da30d-b087-4fbc-b023-e62dd2edbd35.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 0x5b1821b0294489e21eed5c5e5d7e1977d29d626ffd2f6344e14cdce45e544b3f. 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/QZES52013191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8441056adc91ba510a14cee7043dca5d7c8409359877eb16765ba7b8ee2bead5. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/QZHN72044170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2679f16f1ae40d1a721f3c31e0e50f1b206ead330f391c865f7a1c901e8aed. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:07:52Z), 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/QZHNB2044028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85148a9749e7fd3ab2fc11cae46a849d6e431f193bccf3808deb4a1711ed2569. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZK6G2179131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7be78505de49a4696d3756cf0be7246cb2f239e435bf0cc8dab1ca51a11858d4. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZTAT2236589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd314d42207c8d8c858ae4fcf45206a045c11cbdea38c1e1ef62367a38aeafe06. 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/QZTAW2360384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3687c54f65cb9c276df82db4ba00cb2cffa72f7ee23e172c09ce7d3ef44cdfdb. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZTBD2518341.