1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x3dd947e15da5de9deb5a7c86fc757dad1cbfd6769236218652703028dece04a4. 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/530a96b8-ba30-4f67-af75-33d90a665f95.json and https://artists.proofprofile.net/proofs/artist/530a96b8-ba30-4f67-af75-33d90a665f95.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x99d7cddb8cb56ef087fb1d33b12b96ae29b95b0e0b0565bca804fd6812713a88","isrc":"GBRKQ2268874","name":"Call of the Wild","registered_at":"2026-06-29T09:17:57Z","spotify_id":"0dTKJo29PfzXcOSeVFyKTY","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d7cddb8cb56ef087fb1d33b12b96ae29b95b0e0b0565bca804fd6812713a88. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0dTKJo29PfzXcOSeVFyKTY.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0dTKJo29PfzXcOSeVFyKTY.
The Druid Grove (from "Baldur's Gate 2 Shadows of Amn")
Trademeet (from "Baldur's Gate 2 Shadows of Amn")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a6fc37b71b3377682cb7798c4cc35e494c4692bd3f26102c48c608f705df0f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4T24m3m43ZQ93NHscd5g13.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4T24m3m43ZQ93NHscd5g13.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a4a4cf9b354c86038debb4d8ab00c095abe50c2c594022793655d47d6c7095. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4L8YambpotpoQsodI8ZW1H.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4L8YambpotpoQsodI8ZW1H.
A Time of Quiet Between the Storms (from Dune Part Two)