Pith Number

pith:7SP2RS6B

pith:2013:7SP2RS6BOWY6GD2BBRYF2XWUHG

not attested not anchored not stored refs pending

The COS-Halos Survey: Rationale, Design, and A Census of Circumgalactic Neutral Hydrogen

Amanda Brady Ford (Arizona), Benjamin D. Oppenheimer (Leiden, Christopher Thom (STScI), Colorado), David Weinberg (Ohio State), Jason Tumlinson (STScI), Jessica Werk (UCSC), John O'Meara (St. Michaels), Joseph Meiring (UMass), J. Xavier Prochaska (UCSC), Ken Sembach (STScI), Molly Peeples (UCLA, Neal Katz (UMass), Romeel Dave (Arizona, STScI), Todd Tripp (UMass), UWC)

arxiv:1309.6317 v1 · 2013-09-24 · 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{7SP2RS6BOWY6GD2BBRYF2XWUHG}

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	2026-05-18T01:47:27.232362Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc9fa8cbc175b1e30f410c705d5ed439a94fe82f5d7edd9fa412afe71bb5f29e

Aliases

arxiv: 1309.6317 · arxiv_version: 1309.6317v1 · doi: 10.48550/arxiv.1309.6317 · pith_short_12: 7SP2RS6BOWY6 · pith_short_16: 7SP2RS6BOWY6GD2B · pith_short_8: 7SP2RS6B

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/7SP2RS6BOWY6GD2BBRYF2XWUHG \
  | 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: fc9fa8cbc175b1e30f410c705d5ed439a94fe82f5d7edd9fa412afe71bb5f29e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e03a605e033e7fb764b9160b46ec7f4ce7daf11fff86fffa299322cb1ec226e",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-09-24T20:00:01Z",
    "title_canon_sha256": "ecdad02a5fd7e1fb4ee5c9001d2c12f42964faa307978f330016902864fcc8e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.6317",
    "kind": "arxiv",
    "version": 1
  }
}