Pith Number

pith:I4P57HSC

pith:2012:I4P57HSCALKV7SXOGPVVTV4AGC

not attested not anchored not stored refs pending

Gas depletion in cluster galaxies depends strongly on their internal structure

Cheng Li, Guinevere Kauffmann, Ting Xiao, Wei Zhang

arxiv:1207.3924 v2 · 2012-07-17 · astro-ph.GA · 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{I4P57HSCALKV7SXOGPVVTV4AGC}

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	2026-05-18T01:56:17.581027Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

471fdf9e4202d55fcaee33eb59d78030bd71ec528745ec2f92ea11b36ad68b3f

Aliases

arxiv: 1207.3924 · arxiv_version: 1207.3924v2 · doi: 10.48550/arxiv.1207.3924 · pith_short_12: I4P57HSCALKV · pith_short_16: I4P57HSCALKV7SXO · pith_short_8: I4P57HSC

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/I4P57HSCALKV7SXOGPVVTV4AGC \
  | 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: 471fdf9e4202d55fcaee33eb59d78030bd71ec528745ec2f92ea11b36ad68b3f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "645ef8938051a5a8f895361985cb569887b8210559373b4c62276b7fbc9f940e",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-07-17T09:20:06Z",
    "title_canon_sha256": "aed3dc7b9e59f6396f5362be03c0a1ec6fa81fd498373a8c19232c757a9a66f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.3924",
    "kind": "arxiv",
    "version": 2
  }
}