C2PA Signer is live.
A local-first extension to verify, explain and test-sign C2PA Content Credentials directly in the browser.
Use it to:
• verify local files
• scan visible web media
• inspect C2PA manifests
• review trust-chain details
Try it: https://t.co/n0pObvAgNH
Nov 11 c2pa-rs 0.92: signers can staple OCSP responses for the full X.509 chain—not just the leaf—so syndicated images carry revocation evidence to newsrooms with no direct CA tie. Validators may still force live fetches.
https://t.co/La0fEoOHC5
#C2PA#PKI
Nov 11 ADC26: UMG/Roland—C2PA ingredients on music exports (vocals, instruments, AI tools); CAWG for who. Hard bind at export; soft bind if codecs strip JUMBF.
https://t.co/pqISTA5PaZ
#C2PA
Nov 10 CPL: Cloudflare Images cleared Generator L1—edge transforms can append signed C2PA actions instead of stripping JUMBF. Toggle preserve creds; test the byte your CDN serves.
https://t.co/mfFtS9G8e1
#C2PA#CDN
Nov 9 CAI: Ecosystem Explorer catalogs 276 live Content Credentials tools—cameras, CMS, signers—beside CPL. Member roster ≠ shippable products; filter by conformance before vendor picks.
https://t.co/ZN0VumDlHK
#C2PA#Provenance
Nov 9 Bits&Chips: worst disinfo uses real, signed pixels—false captions still pass C2PA. Chains ship in silicon; screenshots & most CMS break custody. Manifests vouch for bytes, not claims.
https://t.co/ZBbGKbGdJR
#C2PA#Provenance
Nov 7 CPL adds: Google Project Genie → Generator L1—named Genie outputs now on the public conformant-products list beside Google media processors.
https://t.co/azxgRHVx5N
#C2PA#AI
Nov 6 audit: 75 images on AI-heavy pages—0 C2PA manifests, 53% stripped bare (WebP/CDN). Origin signing ≠ what the browser downloads; test the URL you serve.
https://t.co/8f6JNolz6C
#C2PA#Provenance
Nov 4 CPL: Imgix Rendering API hit Generator L1—transforms can record edits via provenance=c2pa. Most CDNs re-encode and kill creds; inspect the bytes your edge actually serves.
https://t.co/mfFtS9G8e1
#C2PA#CDN
Nov 4: Samsung C2PA Root CA G1 joined both C2PA Trust List and TSA list—mobile OEMs can anchor claim-signing + timestamp chains without piggybacking on Adobe/Google alone.
https://t.co/azxgRHVx5N
#C2PA#PKI
Nov 4: Tomorrow's Publisher—newsrooms routing images with AI need provenance records, not detector scores. C2PA binds edit/tool history; missing creds ≠ fake, and creds ≠ scene truth.
https://t.co/m5HtalWeoS
#C2PA#Newsroom
Oct 30 CAI forum staff: C2PA grades spec A but platforms C—signing works, delivery strips creds. Weakest link isn’t capture; it’s upload/CDN/display preserving manifests.
https://t.co/Uzb9TUkvtY
#C2PA#Provenance
Oct 23: Reality Defender—C2PA documents origin; deepfake detection reads pixels. Compliant AI can carry honest creds and still be synthetic. Fraud stacks need both signals, not either/or.
https://t.co/qiTFELSypT
#C2PA#Provenance
Oct 29: Buchanan maps eMudhra CA fallout onto C2PA—top verify tools skip revocation, so a compromised trust-list CA could bless forgeries until lists update. Chain valid ≠ signer still trusted.
https://t.co/21zes9YRhQ
#C2PA#PKI
Oct 30: Drupal Content Credentials alpha3 queues C2PA reads on media upload—AI Disclosure suggestions only after cron + trusted certs, never auto-labels. Ships provemark verifier 0.10 after false “Trusted” reads.
https://t.co/9swLtOjHRF
#C2PA#CMS
Oct 30: Partial C2PA creds capture only the last edit—yet teams can reconstruct those ops to calibrate synthetic-image detectors when earlier history is blank. Provenance as forensic context, not just disclosure.
https://t.co/1XxHwUEtbx
#C2PA#Provenance
Oct 28 CPL: Shachihata SIGNED SOUND hits C2PA Generator L1 for official audio—Evixar soft-binding watermarks/fingerprints + iTrust CA-signed manifests when JUMBF gets stripped.
https://t.co/s5oJw4l7qj
#C2PA#Provenance
Oct 27: EverStamp for iOS cleared C2PA conformance (Generator L1)—Secure Enclave signing in-manifest, plus eIDAS qualified RFC 3161 seals when you close a file. Hardware signing ≠ scene truth; read manifest + TSA layers separately.
https://t.co/mfFtS9G8e1
#C2PA#Provenance
Oct 27: Amazon Ads hit C2PA conformance (Generator L1)—ad creative now in the same trust-list bucket as Titan Image. Inspect signer + AI fields; valid creds ≠ truthful claims.
https://t.co/yHGpNOnKsC
#C2PA#Provenance