Pith Number

pith:FPAUYHF6

pith:2025:FPAUYHF67QYU5BWIQF654VJZGP

not attested not anchored not stored refs pending

Neural Restoration of Greening Defects in Historical Autochrome Photographs Based on Purely Synthetic Data

Arjan Kuijper, Johannes Koppe, Michael Weinmann, P. Julius Kuehn, Saptarshi Neil Sinha

arxiv:2505.22291 v2 · 2025-05-28 · cs.CV · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FPAUYHF67QYU5BWIQF654VJZGP}

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	2026-07-05T11:56:19.867222Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2bc14c1cbefc314e86c8817dde553933cc06c5db940a0cde556cdfd07a1f64ce

Aliases

arxiv: 2505.22291 · arxiv_version: 2505.22291v2 · doi: 10.48550/arxiv.2505.22291 · pith_short_12: FPAUYHF67QYU · pith_short_16: FPAUYHF67QYU5BWI · pith_short_8: FPAUYHF6

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/FPAUYHF67QYU5BWIQF654VJZGP \
  | 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: 2bc14c1cbefc314e86c8817dde553933cc06c5db940a0cde556cdfd07a1f64ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "20c5bff5711c4bf617c7d712f761de42c528170f7e277e5bf5bfbc793c3a3503",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2025-05-28T12:28:35Z",
    "title_canon_sha256": "68c9b500ceca539202846ae3c2b0a1833cdfa524d868f5d3ad611c2dc9584200"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.22291",
    "kind": "arxiv",
    "version": 2
  }
}