Pith Number

pith:M44BG4QZ

pith:2002:M44BG4QZOZZIR2GHGN2WYPQ3BO

not attested not anchored not stored refs pending

Optical polarization and near IR photometry of the proto-planetary nebula Hen 3-1475

(2) IAG/USP, 3), (3) UNIVAP/IPD, (4) LNA), Claudia V. Rodrigues (1), Francisco J. Jablonski (1), Gabriel R. Hickel (1, Jane Gregorio-Hetem (2), Marilia J. Sartori (4) ((1) INPE

arxiv:astro-ph/0212435 v1 · 2002-12-19 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M44BG4QZOZZIR2GHGN2WYPQ3BO}

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	2026-07-04T16:31:26.830214Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6738137219767288e8c733756c3e1b0b938d1865c6e99fb5e16f9f0ff09ec4c2

Aliases

arxiv: astro-ph/0212435 · arxiv_version: astro-ph/0212435v1 · doi: 10.48550/arxiv.astro-ph/0212435 · pith_short_12: M44BG4QZOZZI · pith_short_16: M44BG4QZOZZIR2GH · pith_short_8: M44BG4QZ

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/M44BG4QZOZZIR2GHGN2WYPQ3BO \
  | 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: 6738137219767288e8c733756c3e1b0b938d1865c6e99fb5e16f9f0ff09ec4c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d8d6eaaf146c5b2efed1383d3edb6a60fd71772dabc9ce58a812cfb8264c4e6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-12-19T13:20:30Z",
    "title_canon_sha256": "8da83c860ea639ecd7b3ae1eb3ec3e5c08cfb23428750b15a1e8840a78766ea4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0212435",
    "kind": "arxiv",
    "version": 1
  }
}