Pith Number

pith:4VTJALD4

pith:2000:4VTJALD4ZF3X3CNUAAWHFDLHVO

not attested not anchored not stored refs pending

The optical polarization of spiral galaxies

E. Audit, J.F.L. Simmons

arxiv:astro-ph/0007025 v1 · 2000-07-03 · 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{4VTJALD4ZF3X3CNUAAWHFDLHVO}

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	2026-07-04T16:16:51.819030Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e566902c7cc9777d89b4002c728d67ab8e7acdb5e8253aceaa0e19d141ba9b01

Aliases

arxiv: astro-ph/0007025 · arxiv_version: astro-ph/0007025v1 · doi: 10.48550/arxiv.astro-ph/0007025 · pith_short_12: 4VTJALD4ZF3X · pith_short_16: 4VTJALD4ZF3X3CNU · pith_short_8: 4VTJALD4

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/4VTJALD4ZF3X3CNUAAWHFDLHVO \
  | 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: e566902c7cc9777d89b4002c728d67ab8e7acdb5e8253aceaa0e19d141ba9b01

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "01f3e7276b2ea7cfcae558214b1fa360062c26cbf4e94e2dc744a64af2f1f764",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-07-03T17:04:12Z",
    "title_canon_sha256": "3e8b70b4cb775b003ecebefcd44c19bfd6e74333a0ec8be183f5bb24206b61e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0007025",
    "kind": "arxiv",
    "version": 1
  }
}