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 0xa6533474d2388aa2aa7f5538aae24d287eb78893ea86360479bce30e16266359. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f56d65a6-6818-4297-91a9-a61dbd1f66b7.json and https://artists.proofprofile.net/proofs/artist/f56d65a6-6818-4297-91a9-a61dbd1f66b7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Free Pxrn: The Memoir of an American Heathen
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 0x67cb6f95729456dda5dc0c6596c0fd1f380745210da8e92498666ee8c2b03eea. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:33:00Z), 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/TCACM1696971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30dcadc77a23275175f1a475e839b4dbd5deea5175ae1076e42831cbc5447fca. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/TCACM1697157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be489385fd71424db11dc2700a125dabda06cf11192d3a412d7d5a435c01a7f. 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/TCACM1697399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa743c58e7d2bef5fc60ca1c14fb337429f112823ac9759ab5777a466eb0d498c. 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/TCADQ1812724.
Mt. Calvary: Life of an American Heathen
Dirty Gloss (Spring / Summer 2020 Collection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d05ff2fdbbbeb49e54b7aa05640409df36e3cc1cbc70e2c023a5d22a542a29. 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/QZNWQ2216215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b82559bbfedf288c9d06207be112bd6775ca4228f7dd418b7a1ea06b82794d. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:59:39Z), 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/QZK6P2364352.
Free Pxrn: The Memoir of an American Heathen (Redux)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f92024a3ce81180d7db6de7d3af0aef78c7cf408fc0971b6f5f1957d8b3be9b. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/QZK6P2364353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ead7347a309afa45cfd9de6ebea497261e0b91053443b9982a6541b39a63552. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZK6P2364368.