FFM may refer to: Companies and organizations Fairchild Fashion Media, an American publisher Felivaru Fisheries, a state-owned fishery company in the Maldives Football Federation of Macedonia, a M
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 0x8a4d32b7e485825f5db23c0c818ef9e5e04a1c16c637c0ca78c3cbfd93a2dcab. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6699745a-61d0-4790-9f85-01a24064403b.json and https://artists.proofprofile.net/proofs/artist/6699745a-61d0-4790-9f85-01a24064403b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cartouche (Assassin's Creed Origins Trailer)
Black Tomb (From "Shadow of the Tomb Raider")
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 0xd8d7a309063d52596d3ae1752b9b689279d86dc9e7b9faf8f3c2d24b5bd9f71c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/UKLMF2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b9397b68871a49f95cb43e002b2165dbac5ef1e70df25d440db16cb6374e83. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/UKW3Z2404532.
Soul of a Man (FFM Remix) - From Assassin's Creed Valhalla
Soul of a Man (FFM Remix) (From Assassin's Creed Valhalla)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd73ddb2ab64d554508d7a193ce0b480959abe0280e1ad00e52cda40c597aad4d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USLS52075401.