Pith Number

pith:JEDBFGNJ

pith:2011:JEDBFGNJEA3MIIRR7ZRG5QIJW3

not attested not anchored not stored refs pending

Detection of Pristine Gas Two Billion Years after the Big Bang

John M. O'Meara, J. Xavier Prochaska, Michele Fumagalli

arxiv:1111.2334 v1 · 2011-11-09 · 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{JEDBFGNJEA3MIIRR7ZRG5QIJW3}

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.

Cited by

1 paper in Pith

BBN-simple: How to Bake a Universe-Sized Cake

Receipt and verification

First computed	2026-05-18T01:59:42.966016Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

49061299a92036c42231fe626ec109b6c606744ee2727ae9271a3a165ea9f7c2

Aliases

arxiv: 1111.2334 · arxiv_version: 1111.2334v1 · doi: 10.48550/arxiv.1111.2334 · pith_short_12: JEDBFGNJEA3M · pith_short_16: JEDBFGNJEA3MIIRR · pith_short_8: JEDBFGNJ

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/JEDBFGNJEA3MIIRR7ZRG5QIJW3 \
  | 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: 49061299a92036c42231fe626ec109b6c606744ee2727ae9271a3a165ea9f7c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a7f5cb3cc17fec1e221c418ab7637fa700c35eb8d137ba8617d8915053e76e2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-11-09T21:00:02Z",
    "title_canon_sha256": "7b9c24888bcb3868ada9abb015f95f47cd64cb344ba243a21454d77330a359e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.2334",
    "kind": "arxiv",
    "version": 1
  }
}