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 0xcf4814e10905dd866b12c50eea34b401c1edc67f34d34caafb0386efdf9af1a9. 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/dd3a34b3-073c-43dd-94bc-43c6d8ff3117.json and https://artists.proofprofile.net/proofs/artist/dd3a34b3-073c-43dd-94bc-43c6d8ff3117.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cosmic Country Revue - Live at PDV 03/31/23
Flatbed Alfalfa Run To Pueblo, Colorado, Fall 1972
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 0x20fbe2c9f49b04aeb763c768a5f3ae9f13e869ce531bf1eb153cbbe1248bdc27. 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/QZN4Z2000276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2495dace53315b094ece08ba28264fc237cfdec46c641c096b7e9823f3e0c2fe. 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/QZN4Z2000278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c161a2ed3d87737a9673326d5dd2e4255370a7f6b728c8f441c7b4550dd0c1c. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZN4Z2000287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2495dace53315b094ece08ba28264fc237cfdec46c641c096b7e9823f3e0c2fe. 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/QZN4Z2000278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x127f0d4bd75eed2a7aa2fd502be6587ce1aa1fcce479e36eea8c9c0bec0aa7fd. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/QZN4Z2000283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e9bf5c64b6208cb926383be3d48009960e0645076f70f42f00e0d33c08318f. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZN4Z2000285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b49676f76d6086ec7c7763d9a8498ed11ef9f98d720b903ff34ce76239e7d8. 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/UKZPH2100089.