thumb|upright|Statue of Veritas outside the Supreme Court of Canada In Roman mythology, Veritas (), meaning Truth, is the Goddess of Truth, a daughter of Saturn (called Cronus by the Greeks, the Tita
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 0x7037148e43da79018c4bcfd98fabf3ee32e02c2e9461c158914a5689b5b2ff72. 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/947e29f1-d1c1-4430-ba2c-604e1f3cb9ac.json and https://artists.proofprofile.net/proofs/artist/947e29f1-d1c1-4430-ba2c-604e1f3cb9ac.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 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 0x8655aa32c97eeae31d691bb5714b199fd35cbae8d232a7453c5b5a0022faae51. Chain 2 (Bitcoin): anchored in block 957587 (2026-07-11T16:48:26Z), 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/QZES71948758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac0dca72c0cee999de3026db6ad944dafddd4e70d5c5704ae59af6b04f2b3ea. Chain 2 (Bitcoin): anchored in block 957587 (2026-07-11T16:48:26Z), 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/QZDA81921113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbae8a1b5397f243f083aea1301d7c086206c25c0a284305b8594d5c801d2fbc. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QZES81951338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e9ebfe365258b8be7bf7b3b3914171d93ce55588e67ad295b2471f7f70c99e3. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZES81951340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf74ae31220241250d91cc74e37f6953e31c7673e299f23b7ae984e2523d71f. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZFYW2016580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4103b11fc7cf2c88225cc979a76dcd4ba7d20bbe2d5d229f31948c52f8455e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZES51908163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8655aa32c97eeae31d691bb5714b199fd35cbae8d232a7453c5b5a0022faae51. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZES71948758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318a8261ef0795a78832ce10c72d0e3c57e2930852bf2645b6894a52569accbc. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/QZDA71966766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d6273f1502427de46f77ab01c7d57f2e4b7b2e5bcbb6e26a0517a513d9b5a7. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZDA61953740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790cc0930109a9a455e8ef12b52bca732b036d992182bdcf4dd4b169e9140447. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZDA61908517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8430767722424e765f6deabca653877434655ffd20d4fca89e2593e46f734eb9. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/QZES81951335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b422c2d6ac6375659575a3c6129f39ac1c96aa567bd22ecfbc3df31d9f1d80b. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/QZES81951337.