OAB may stand for: Order of Attorneys of Brazil (Ordem dos Advogados do Brasil), the Brazilian Bar Association The Oxford Annotated Bible Oita Asahi Broadcasting, a television station in Oita Prefec
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 0x437018ebbc3560197df3534ce71c6206724363034338a5261abb6cfcba5aed72. Chain 2 (Bitcoin): anchored in block 953888 (2026-06-16T04:55:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d21a3d9-6c14-46c8-9cb6-f6395fd69e0a.json and https://artists.proofprofile.net/proofs/artist/0d21a3d9-6c14-46c8-9cb6-f6395fd69e0a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Roll at Dawn (feat. Jack Jetson, Bva, Smellington Piff, Oab & Leaf Dog)
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 0x247d93c903ce17ee0bb84a51dcd7615117d0ac27ac1ed70b9a8fb93bab14cfe7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBVW21600002.
War Drum (feat. Leaf Dog, Eric the Red, Index, Oab, Smellington Piff & Jack Jetson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e28e6b3cf726bd48945b33e76051198f12e32e11eb659bd47117fb292c4a9c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBVW21500003.