Derviş is the Turkish and Bosnian (Derviš) spelling of the Persian and Arabic word "" (), referring to a Sufi aspirant. The word appears as a given name and surname in various forms throughout Arabic,
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 0xc92f9b1eeee52eebe5bee6ced3fc9b1e1532d24f88d58f181a833a9dec8078ff. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/acdde3ae-bfb4-4d7f-b316-4c45069fb2c4.json and https://artists.proofprofile.net/proofs/artist/acdde3ae-bfb4-4d7f-b316-4c45069fb2c4.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 0x4ca0f985dab40dbbdf772ae273f059f0a311642e1b0c17a10373ca7bd022f219. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/TR1780901101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd901524c944981d42a01f6757fded5e646f98102aeff8906b81e749a67136c. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/TR1780901107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d072e324e3976857a62e487147d86cb4651316a4a7eac1a2e6423759026070e. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:47:25Z), 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/TR7081200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62bf1569b4d94ec4ae310b3fac82f90ea8ce4681de0c88396090288a7991b5b6. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/TR7081200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e337dff1b36c29d264572b39a612a34dc998a7177cdec8148cdbe1704d1ede. 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/TR7081500001.