Pith Number

pith:32Z46IV3

pith:2023:32Z46IV3NEJIPUIOG5VAZY4QG2

not attested not anchored not stored refs pending

Simulating analogue film damage to analyse and improve artefact restoration on high-resolution scans

Daniela Ivanova, John Williamson, Paul Henderson

arxiv:2302.10004 v1 · 2023-02-20 · cs.CV · eess.IV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{32Z46IV3NEJIPUIOG5VAZY4QG2}

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	2026-07-05T05:43:32.232269Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

deb3cf22bb691287d10e376a0ce39036a2ff255fef1841f9ceffce7f4de49e02

Aliases

arxiv: 2302.10004 · arxiv_version: 2302.10004v1 · doi: 10.48550/arxiv.2302.10004 · pith_short_12: 32Z46IV3NEJI · pith_short_16: 32Z46IV3NEJIPUIO · pith_short_8: 32Z46IV3

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/32Z46IV3NEJIPUIOG5VAZY4QG2 \
  | 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: deb3cf22bb691287d10e376a0ce39036a2ff255fef1841f9ceffce7f4de49e02

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8bb2e0dff3f34555cfd9bc8f5c800dcde23f5effed8a843deb92bc9052d7fcb5",
    "cross_cats_sorted": [
      "eess.IV"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2023-02-20T14:24:18Z",
    "title_canon_sha256": "d53290cbdd221f64c93a0aff9ff28cd8ae357e210311b7aad096d36d038d8152"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2302.10004",
    "kind": "arxiv",
    "version": 1
  }
}