FFS is a commonly used initialism for "for fuck's sake". It is often said or typed as a form of minced oath by abbreviation. "FFS" may also refer to: Computing Feige–Fiat–Shamir identification schem
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 0x7bf6ca4e562f8678489e98167a0c4a2444d26bf4a1027b355c00859db4f23521. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/12948e2b-4e6f-42f6-9d68-320b34452740.json and https://artists.proofprofile.net/proofs/artist/12948e2b-4e6f-42f6-9d68-320b34452740.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 0xaf5fb834aa3dd794e8ac9b6dd1366ca07fbee2f60126d3b8e1725e3a332273cc. 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/GBCEL1500107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65d6183722a87cad0c8ed1394f879e2f3bf672be4287139939d0be9c67e8e80. 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/GBCEL1500108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086bd1750938b0c39871fe0915ac213368d3ab564951c41e74eeff4e17c17c74. 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/GBCEL1500109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec9b9ce9912a51aa09c35c437a885dbf6ee58f014b6e64609fb85523dd7dbb88. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBCEL1500110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6365e5a79d1112804779411b33a1d069fa7a1bc74b08653dc8dca285d5abdc6c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBCEL1500111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a48aea5f3ac7a2fe743f76db09d41dec13b4ee385c8ec760d5bcca44e2f95b0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBCEL1500112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9763f9974ad31596b6fd79b4a52661f769a3174b3bd1d9a0edaacfb07e17f01. 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/GBCEL1500113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d4ffcb394be67b4188cc8f2f8b587f4ea2d6d34f8d662ba9dddf34d8e68484f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBCEL1500114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888018bbc2a77836ec3e8aed8666926c74e10f05c13008a655a3a43d27515a31. 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/GBCEL1500115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6e3cffef5ab6540187640348ceec1a95b6d2799b100c17f1ddddf8a70d22425. 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/GBCEL1500116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96824d73a8b5d7085c50d5b63a98cbb9d96a5dd0ef1b4f944a5e0223a8be0c6. 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/GBCEL1500117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67bb94d3edc9a99e58d12d4777f9ab83569adb6bfbe61bcefc52771f011df2d9. 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/GBCEL1500118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6907a081424f1f89358115913cc60c5118d31c09f74c4c519ca80362339aa9. 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/GBCEL1500119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf9a3d82fb6b47ae64002e09ef488c56b7b66ec5bd4232eb145c59938117941a. 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/GBCEL1500120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61e121cd45b20094d9af227128605b875ca9eb54c5f794bcb37e0618bf9bbe7. 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/GBCEL1500121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee6f6322f700808bcc0ca2588c3095b795f5b9ccf6b606e736c5026f79bed6a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBCEL1500122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6365e5a79d1112804779411b33a1d069fa7a1bc74b08653dc8dca285d5abdc6c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBCEL1500111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb84ae3f42224220b1e8f2117b593569270cb6eec638f8d630fcb6ced79860a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBCEL1500683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x391bf18496474405557ad20afae875532b9958933fe8c955e8ae8966b4692ab8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES5270401921.