Pith Number

pith:DAXNX5FM

pith:2010:DAXNX5FMULDXI6PQOLWXHMBOEC

not attested not anchored not stored refs pending

The neutral gas extent of galaxies as derived from weak intervening CaII absorbers

C. Fechner, F. Krause, J.C. Charlton, M.T. Murphy, P. Richter

arxiv:1008.2201 v2 · 2010-08-12 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DAXNX5FMULDXI6PQOLWXHMBOEC}

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	2026-05-18T02:05:48.831821Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

182edbf4aca2c77479f072ed73b02e208558987b78fbfe3519c9757a3c0c92f3

Aliases

arxiv: 1008.2201 · arxiv_version: 1008.2201v2 · doi: 10.48550/arxiv.1008.2201 · pith_short_12: DAXNX5FMULDX · pith_short_16: DAXNX5FMULDXI6PQ · pith_short_8: DAXNX5FM

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/DAXNX5FMULDXI6PQOLWXHMBOEC \
  | 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: 182edbf4aca2c77479f072ed73b02e208558987b78fbfe3519c9757a3c0c92f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c320b76c26ef4cf19b0c4345b9144d55b7ff33443377f0f4bb0114cae9c57d70",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-08-12T20:00:01Z",
    "title_canon_sha256": "1856f18fd560a945482497654983f4cb35d469f88293dbcffde165c2fdf7aec0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.2201",
    "kind": "arxiv",
    "version": 2
  }
}