Pith Number

pith:JNO224ID

pith:2012:JNO224ID4HJ6MT2TR5LHX73FUD

not attested not anchored not stored refs pending

Galaxy Gas Fractions at High-Redshift: The Tension between Observations and Cosmological Simulations

Desika Narayanan (Arizona), Matt Bothwell (Arizona), Romeel Dave (Arizona)

arxiv:1209.0771 v1 · 2012-09-04 · astro-ph.CO · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JNO224ID4HJ6MT2TR5LHX73FUD}

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	2026-05-18T01:54:40.619549Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b5dad7103e1d3e64f538f567bff65a0f976451b077f96cbb7e24604039d2388

Aliases

arxiv: 1209.0771 · arxiv_version: 1209.0771v1 · doi: 10.48550/arxiv.1209.0771 · pith_short_12: JNO224ID4HJ6 · pith_short_16: JNO224ID4HJ6MT2T · pith_short_8: JNO224ID

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/JNO224ID4HJ6MT2TR5LHX73FUD \
  | 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: 4b5dad7103e1d3e64f538f567bff65a0f976451b077f96cbb7e24604039d2388

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b65b1ee21bfc6cbcc9fc8257dfc2d855dcfd5b41fa2b8faf20ad95163d2d4337",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-09-04T20:00:04Z",
    "title_canon_sha256": "1f9a4cccc289cdb8f2cae1815581e861b157410df624816fa7efba4af11e5da8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.0771",
    "kind": "arxiv",
    "version": 1
  }
}