Pith Number

pith:TMK2U2QE

pith:2012:TMK2U2QEUINYDTOWS6KTCCAB3C

not attested not anchored not stored refs pending

The Escape Fraction of Ionizing Radiation from Galaxies

(2) University of San Francisco, (3) University of Colorado, Andrew Benson (1), Aparna Venkatesan (2), Boulder, J. Michael Shull (3) ((1) Carnegie Observatories, Pasadena, San Francisco, USA, USA)

arxiv:1212.4452 v2 · 2012-12-18 · 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{TMK2U2QEUINYDTOWS6KTCCAB3C}

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	2026-05-18T01:52:30.850909Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9b15aa6a04a21b81cdd69795310801d88901c7d94bb9bd645aa91dc4615413c3

Aliases

arxiv: 1212.4452 · arxiv_version: 1212.4452v2 · doi: 10.48550/arxiv.1212.4452 · pith_short_12: TMK2U2QEUINY · pith_short_16: TMK2U2QEUINYDTOW · pith_short_8: TMK2U2QE

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/TMK2U2QEUINYDTOWS6KTCCAB3C \
  | 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: 9b15aa6a04a21b81cdd69795310801d88901c7d94bb9bd645aa91dc4615413c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8abb4685b790ba58b026632ee41b3f4375efaedb0f2f8225721ae437a86f7cfa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-12-18T18:25:07Z",
    "title_canon_sha256": "096537e8d8f208da12a395fc36775547b8a66732ec4f598c14ada13d87b43d39"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.4452",
    "kind": "arxiv",
    "version": 2
  }
}