Pith Number

pith:CZI7SMRC

pith:2013:CZI7SMRCEUM6DHUVNNOAQZ3BIL

not attested not anchored not stored refs pending

Metal-Poor, Cool Gas in the Circumgalactic Medium of a z = 2.4 Star-Forming Galaxy: Direct Evidence for Cold Accretion?

Joseph F. Hennawi, J. Xavier Prochaska, Neil H. M. Crighton

arxiv:1307.6588 v3 · 2013-07-24 · 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{CZI7SMRCEUM6DHUVNNOAQZ3BIL}

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	2026-05-18T01:48:40.357731Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1651f932222519e19e956b5c08676142f88e965c583cb2b6bc713855df96eb8b

Aliases

arxiv: 1307.6588 · arxiv_version: 1307.6588v3 · doi: 10.48550/arxiv.1307.6588 · pith_short_12: CZI7SMRCEUM6 · pith_short_16: CZI7SMRCEUM6DHUV · pith_short_8: CZI7SMRC

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/CZI7SMRCEUM6DHUVNNOAQZ3BIL \
  | 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: 1651f932222519e19e956b5c08676142f88e965c583cb2b6bc713855df96eb8b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2776751e32b9dc4f6f839a6c8ec781181c2011c1d21b14d7f920c7b05271536b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-07-24T21:23:11Z",
    "title_canon_sha256": "72cf54e46c363742f87766f3d94a76ab00436c7c8e0a8d4318f0034af91ff18f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.6588",
    "kind": "arxiv",
    "version": 3
  }
}