Pith Number

pith:TD25VRP7

pith:2012:TD25VRP74M4X36X7ZAWT5UZRA4

not attested not anchored not stored refs pending

QSO Absorption Systems Detected in Ne VIII: High-Metallicity Clouds with a Large Effective Cross Section

Edward B. Jenkins, J. Christopher Howk, Jessica K. Werk, Joseph D. Meiring, J. Xavier Prochaska, Kenneth R. Sembach, Nicholas Lehner, Todd M. Tripp

arxiv:1201.0939 v4 · 2012-01-04 · 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{TD25VRP74M4X36X7ZAWT5UZRA4}

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	2026-05-18T01:58:57.815411Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98f5dac5ffe3397dfaffc82d3ed33107344aad017ca630f55b2f3b4c04f70aeb

Aliases

arxiv: 1201.0939 · arxiv_version: 1201.0939v4 · doi: 10.48550/arxiv.1201.0939 · pith_short_12: TD25VRP74M4X · pith_short_16: TD25VRP74M4X36X7 · pith_short_8: TD25VRP7

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/TD25VRP74M4X36X7ZAWT5UZRA4 \
  | 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: 98f5dac5ffe3397dfaffc82d3ed33107344aad017ca630f55b2f3b4c04f70aeb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "edf199dd0d2759c561864d5a298908d6e003d33f0aef64a1990ac0ab0501af8d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-01-04T17:16:32Z",
    "title_canon_sha256": "940dbd24e0bdc4bff273e073a49c9aa57e1a91de9fd36b9625a9b3a927b9eb67"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.0939",
    "kind": "arxiv",
    "version": 4
  }
}