Pith Number

pith:UMVZ2TRE

pith:2022:UMVZ2TREOJRGXWHNV2WHRCONZR

not attested not anchored not stored refs pending

Photometry on Structured Backgrounds: Local Pixelwise Infilling by Regression

Andrew K. Saydjari, Douglas P. Finkbeiner

arxiv:2201.07246 v1 · 2022-01-18 · astro-ph.IM · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UMVZ2TREOJRGXWHNV2WHRCONZR}

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	2026-07-05T04:41:30.804671Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a32b9d4e2472626bd8edaeac7889cdcc4c5bd9b20e5b7176c78fab7f1c989b79

Aliases

arxiv: 2201.07246 · arxiv_version: 2201.07246v1 · doi: 10.48550/arxiv.2201.07246 · pith_short_12: UMVZ2TREOJRG · pith_short_16: UMVZ2TREOJRGXWHN · pith_short_8: UMVZ2TRE

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/UMVZ2TREOJRGXWHNV2WHRCONZR \
  | 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: a32b9d4e2472626bd8edaeac7889cdcc4c5bd9b20e5b7176c78fab7f1c989b79

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41046dd252d1cac02355f0e5397d0aa9e7603b3722241659c27abe9e7784ad0a",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2022-01-18T19:00:01Z",
    "title_canon_sha256": "3ce77b82d6d36238aa3e8b5934b367945bc345357805982fdc6b0ee10fd55970"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.07246",
    "kind": "arxiv",
    "version": 1
  }
}