Pith Number

pith:7U3ELLB4

pith:2014:7U3ELLB4Z24WG2UDEY3S3ZTSFJ

not attested not anchored not stored refs pending

Narrow escape: how ionizing photons escape from disc galaxies

Arpita Roy, Biman B. Nath, Prateek Sharma

arxiv:1412.7924 v2 · 2014-12-26 · 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{7U3ELLB4Z24WG2UDEY3S3ZTSFJ}

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	2026-05-18T02:12:10.988992Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd3645ac3cceb9636a8326372de6722a69159a35e06e0b3f17155ae1ac84a299

Aliases

arxiv: 1412.7924 · arxiv_version: 1412.7924v2 · doi: 10.48550/arxiv.1412.7924 · pith_short_12: 7U3ELLB4Z24W · pith_short_16: 7U3ELLB4Z24WG2UD · pith_short_8: 7U3ELLB4

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/7U3ELLB4Z24WG2UDEY3S3ZTSFJ \
  | 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: fd3645ac3cceb9636a8326372de6722a69159a35e06e0b3f17155ae1ac84a299

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0ff02b62a6076016c8bc0d00b210dad197d6480d84ba1fcf8809820822ab6ec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-12-26T10:21:51Z",
    "title_canon_sha256": "2ff4378e7f3aeda50a75fdf3a029f78ab74e54302a116c614a14a0e5c9333627"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.7924",
    "kind": "arxiv",
    "version": 2
  }
}