Pith Number

pith:V4NSFRS3

pith:2002:V4NSFRS3CKEIXEFD5V2FKR5MCM

not attested not anchored not stored refs pending

Evidence for an outer disk in the Prototype `Compact Elliptical' Galaxy M32

Alister W. Graham

arxiv:astro-ph/0202307 v1 · 2002-02-15 · 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{V4NSFRS3CKEIXEFD5V2FKR5MCM}

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	2026-05-18T03:57:01.438445Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af1b22c65b12888b90a3ed745547ac132702f7cc2f29c37ae38f8be6920ae9ee

Aliases

arxiv: astro-ph/0202307 · arxiv_version: astro-ph/0202307v1 · doi: 10.48550/arxiv.astro-ph/0202307 · pith_short_12: V4NSFRS3CKEI · pith_short_16: V4NSFRS3CKEIXEFD · pith_short_8: V4NSFRS3

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/V4NSFRS3CKEIXEFD5V2FKR5MCM \
  | 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: af1b22c65b12888b90a3ed745547ac132702f7cc2f29c37ae38f8be6920ae9ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7ea06c955de06ff27c2d7eb6d3d750295ede769115f6d038dbd53d66dc268a1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-02-15T19:16:37Z",
    "title_canon_sha256": "a30863e2b0483360a0f4dd1c29dfc892d440198e22366b25a63723e285d743e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0202307",
    "kind": "arxiv",
    "version": 1
  }
}