Scott Griffiths, better known by the stage name Optamus, is one of the MCs of the Perth-based Australian hip-hop group Downsyde and member of WA's Syllabolix Crew. Optamus is also the name of Griffith
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc024b1999344fa525deccfe8b974b400cee4fe4077f0f3fda2466e95bc678811. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b5eca47d-2278-4955-b02e-28a450924abf.json and https://artists.proofprofile.net/proofs/artist/b5eca47d-2278-4955-b02e-28a450924abf.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea897c5d75af5385e7e1363543272def696189dab6fcf5a408842ed23d738217. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USA2P1523890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52665bf6c59c41991f80d014a1a1cfe9b8ecf302c36919bc2195da3502a6c710. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USA2P1523893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf824b5e4624757eda36d766a6b7e8a67682196a4afbe0261ca47ab49de74df. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/USA2P1523894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d2233175266bf2f65557731cb71387cbd6bc942ef493e68388ea2dc005eadeb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USA2P1523899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1306daeefb3a77ef5a235e79475e31c9fc4dd2c3b74de1a38e335efd5c4cc6b2. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/USA2P1523903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x083c8ed7e0599a2bf5cf70fa3a71da3e98b761fb1992bf7bacb05d5fd30132ec. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/QMFMF1445657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0fd74987dc95c45218313efe376fa60b553edaeb904659b245e4c58672b9bc1. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/QMFMF1445665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e8d59e7a103abd72df333daacdfe8c4bce0a4ccc04eafc1fe201e6edfd6934e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/AUOD21301254.
Buddy (feat. Bitter Belief, Mr Grevis, Mortar, Graphic & Optamus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e940c688f160b75417ee138c860ce05f27750846457e6bc6305badc1580c7c8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/AUWA02100414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a8d222180d5c9ace908ec5cd5832eacd7fb3318cc67a0533624de320a1e4bb. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QZFYY1951953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea76b0abb47b739245a7af472cc8147ebe98cd2c5464fb2ffd4f92d8564ae55. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/TCACF1566634.