Pith Number

pith:QP5PW6LV

pith:2012:QP5PW6LVXUAGXZVT5YXOXH6PSQ

not attested not anchored not stored refs pending

Variable stars in NGC 457

A. Pigulski, D. Mo\'zdzierski, G. Kopacki, M. St\c{e}\'slicki, Z. Ko{\l}aczkowski

arxiv:1211.2920 v1 · 2012-11-13 · astro-ph.SR · 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{QP5PW6LVXUAGXZVT5YXOXH6PSQ}

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	2026-05-18T03:40:52.372221Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83fafb7975bd006be6b3ee2eeb9fcf940ff6ce0230d5f828f1ca2b989cdef0b8

Aliases

arxiv: 1211.2920 · arxiv_version: 1211.2920v1 · doi: 10.48550/arxiv.1211.2920 · pith_short_12: QP5PW6LVXUAG · pith_short_16: QP5PW6LVXUAGXZVT · pith_short_8: QP5PW6LV

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/QP5PW6LVXUAGXZVT5YXOXH6PSQ \
  | 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: 83fafb7975bd006be6b3ee2eeb9fcf940ff6ce0230d5f828f1ca2b989cdef0b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da3c3b6533709497a8feb0ea2df8e057f1bc2cd334e20eafba1d4ad12773a1a1",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-11-13T09:03:13Z",
    "title_canon_sha256": "c18ba14185172bf433efb412f0a264f0332a43662fc9385a7620be937507bd86"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.2920",
    "kind": "arxiv",
    "version": 1
  }
}