Pith Number

pith:VG3I7QEF

pith:2007:VG3I7QEFRUX7XJLZLZNA5SHXKK

not attested not anchored not stored refs pending

Chasing Lambda

Aleksandra Kurek, Marek Szydlowski

arxiv:0710.2125 v3 · 2007-10-10 · 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{VG3I7QEFRUX7XJLZLZNA5SHXKK}

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	2026-05-18T04:36:41.880457Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9b68fc0858d2ffba5795e5a0ec8f75282603108a25e0574f71f0a47328d9ad3

Aliases

arxiv: 0710.2125 · arxiv_version: 0710.2125v3 · doi: 10.48550/arxiv.0710.2125 · pith_short_12: VG3I7QEFRUX7 · pith_short_16: VG3I7QEFRUX7XJLZ · pith_short_8: VG3I7QEF

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/VG3I7QEFRUX7XJLZLZNA5SHXKK \
  | 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: a9b68fc0858d2ffba5795e5a0ec8f75282603108a25e0574f71f0a47328d9ad3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d9cf4b80c591d23a7d09a2e816c53cb797b2d8883a80d1e37f6dc61e990af856",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-10-10T21:55:31Z",
    "title_canon_sha256": "f6c0cb3a8fa59fc4b9f8b96feaef4a9b0548583fdd3973ece4482c8ecdfe331b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0710.2125",
    "kind": "arxiv",
    "version": 3
  }
}