Pith Number

pith:VBY4B67J

pith:2013:VBY4B67JKQMGK6DUYOG7Q2QUFS

not attested not anchored not stored refs pending

High-Redshift Galaxies with Large Ionization Parameters

Emily M. Levesque, Emily M. McLinden, James E. Rhoads, Lifang Xia, Mark L. A. Richardson, Sangeeta Malhotra

arxiv:1309.1169 v1 · 2013-09-04 · 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{VBY4B67JKQMGK6DUYOG7Q2QUFS}

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	2026-05-18T03:14:08.055215Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a871c0fbe95418657874c38df86a142c92c6f9ea4f2eb38d74a64a5a3057b6bb

Aliases

arxiv: 1309.1169 · arxiv_version: 1309.1169v1 · doi: 10.48550/arxiv.1309.1169 · pith_short_12: VBY4B67JKQMG · pith_short_16: VBY4B67JKQMGK6DU · pith_short_8: VBY4B67J

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/VBY4B67JKQMGK6DUYOG7Q2QUFS \
  | 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: a871c0fbe95418657874c38df86a142c92c6f9ea4f2eb38d74a64a5a3057b6bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87ea324f6d7239f774775634aa93e58ae17294efda38b75292d82290a444cdbd",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-09-04T20:00:05Z",
    "title_canon_sha256": "de74ba8c75e16329102a8e3d10fda0609765bbf105293f8b370af00d0b55b5b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.1169",
    "kind": "arxiv",
    "version": 1
  }
}