Pith Number

pith:WUDXHU7G

pith:2022:WUDXHU7G4ZULLLMG7KUVYB3NO5

not attested not anchored not stored refs pending

Fast Light-Weight Near-Field Photometric Stereo

Daniel Lichy, David W. Jacobs, Soumyadip Sengupta

arxiv:2203.16515 v1 · 2022-03-30 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WUDXHU7G4ZULLLMG7KUVYB3NO5}

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	2026-07-05T04:10:11.085560Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b50773d3e6e668b5ad86faa95c076d7766404946a497d62d2fd0da0a4fb73c4b

Aliases

arxiv: 2203.16515 · arxiv_version: 2203.16515v1 · doi: 10.48550/arxiv.2203.16515 · pith_short_12: WUDXHU7G4ZUL · pith_short_16: WUDXHU7G4ZULLLMG · pith_short_8: WUDXHU7G

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/WUDXHU7G4ZULLLMG7KUVYB3NO5 \
  | 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: b50773d3e6e668b5ad86faa95c076d7766404946a497d62d2fd0da0a4fb73c4b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0fdfdd1d15585482e542a959f47bb0a1f046a4d1565f345d51a7c40d0f80b8ba",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2022-03-30T17:51:31Z",
    "title_canon_sha256": "3a458b1645fe911f055953ed3262ea9064938092b0dde72b1e65b0692885140d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.16515",
    "kind": "arxiv",
    "version": 1
  }
}