Pith Number

pith:NCPNPNLV

pith:2022:NCPNPNLVXMN2JD4MYX64XDCZNH

not attested not anchored not stored refs pending

Forensicability Assessment of Questioned Images in Recapturing Detection

Alex C. Kot, Changsheng Chen, Jiwu Huang, Lin Zhao, Rizhao Cai, Zitong Yu

arxiv:2209.01935 v1 · 2022-09-05 · cs.CV · cs.MM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NCPNPNLVXMN2JD4MYX64XDCZNH}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T04:54:35.782130Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

689ed7b575bb1ba48f8cc5fdcb8c5969cd93030c188957347ba302398ac5fefa

Aliases

arxiv: 2209.01935 · arxiv_version: 2209.01935v1 · doi: 10.48550/arxiv.2209.01935 · pith_short_12: NCPNPNLVXMN2 · pith_short_16: NCPNPNLVXMN2JD4M · pith_short_8: NCPNPNLV

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/NCPNPNLVXMN2JD4MYX64XDCZNH \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 689ed7b575bb1ba48f8cc5fdcb8c5969cd93030c188957347ba302398ac5fefa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "915e4e8d77a09efc2a2a2e91855c8c30514e5ea81829289ed14f4ae33b033553",
    "cross_cats_sorted": [
      "cs.MM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2022-09-05T12:26:01Z",
    "title_canon_sha256": "ecead0a757c1e93dae621fa5048381b8323b9fff5843f42d235820b1fba50f6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2209.01935",
    "kind": "arxiv",
    "version": 1
  }
}