Pith Number

pith:EWWKBKJQ

pith:2003:EWWKBKJQF7VDVHH6VTWHJ3Z6CM

not attested not anchored not stored refs pending

A Face-On Tully-Fisher Relation

David Andersen, Matthew Bershady

arxiv:astro-ph/0311474 v1 · 2003-11-20 · 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{EWWKBKJQF7VDVHH6VTWHJ3Z6CM}

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	2026-05-18T01:07:33.139393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25aca0a9302fea3a9cfeacec74ef3e133ab5866245f4a3a2aa8e054d2f3538c1

Aliases

arxiv: astro-ph/0311474 · arxiv_version: astro-ph/0311474v1 · doi: 10.48550/arxiv.astro-ph/0311474 · pith_short_12: EWWKBKJQF7VD · pith_short_16: EWWKBKJQF7VDVHH6 · pith_short_8: EWWKBKJQ

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/EWWKBKJQF7VDVHH6VTWHJ3Z6CM \
  | 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: 25aca0a9302fea3a9cfeacec74ef3e133ab5866245f4a3a2aa8e054d2f3538c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b1816352e67cb37494911d8d28541db56091cd2dbb060dfbba246dc77dc4f12",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-11-20T13:36:12Z",
    "title_canon_sha256": "d4501f5149925bf9a6178fdbf1668b2221fde3fa4c9f307b0f8e26e9be29a3fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0311474",
    "kind": "arxiv",
    "version": 1
  }
}