Pith Number

pith:72MK73BH

pith:2013:72MK73BHXORC3XVV7T2654LRZV

not attested not anchored not stored refs pending

Empirical Constraints on the Star Formation & Redshift Dependence of the Lyman Alpha `Effective' Escape Fraction

Akila Jeeson-Daniel (Melbourne), Mark Dijkstra (MPA)

arxiv:1305.3613 v2 · 2013-05-15 · astro-ph.GA · 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{72MK73BHXORC3XVV7T2654LRZV}

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	2026-05-18T01:49:56.754165Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe98afec27bba22ddeb5fcf5eef171cd72c51adf5f63e8591706d15e2003e1e6

Aliases

arxiv: 1305.3613 · arxiv_version: 1305.3613v2 · doi: 10.48550/arxiv.1305.3613 · pith_short_12: 72MK73BHXORC · pith_short_16: 72MK73BHXORC3XVV · pith_short_8: 72MK73BH

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/72MK73BHXORC3XVV7T2654LRZV \
  | 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: fe98afec27bba22ddeb5fcf5eef171cd72c51adf5f63e8591706d15e2003e1e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d02e75c4f0f50c98c724da276761bec8d985787c8ea64aa77cd2a8cf9caf7b08",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-05-15T20:00:24Z",
    "title_canon_sha256": "a430ed60dc73cdb7ce70e06650af3f61272c908e0f452236f1275028596632e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.3613",
    "kind": "arxiv",
    "version": 2
  }
}