Pith Number

pith:EDZNJ2WA

pith:2013:EDZNJ2WAQOYBJ2QM5VX5ZZA6DL

not attested not anchored not stored refs pending

GRB 130606A as a Probe of the Intergalactic Medium and the Interstellar Medium in a Star-forming Galaxy in the First Gyr After the Big Bang

(2) Penn State, (3) Gemini Observatory), Derek B. Fox (2), Edo Berger (1), Katherine C. Roth (3) ((1) CfA, Maria R. Drout (1), Ragnhild Lunnan (1), Ryan Chornock (1), Tanmoy Laskar (1), Wen-fai Fong (1)

arxiv:1306.3949 v2 · 2013-06-17 · astro-ph.CO · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EDZNJ2WAQOYBJ2QM5VX5ZZA6DL}

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	2026-05-18T01:49:16.081271Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20f2d4eac083b014ea0ced6fdce41e1af8dd3dffbeeb08e876836a12def053f1

Aliases

arxiv: 1306.3949 · arxiv_version: 1306.3949v2 · doi: 10.48550/arxiv.1306.3949 · pith_short_12: EDZNJ2WAQOYB · pith_short_16: EDZNJ2WAQOYBJ2QM · pith_short_8: EDZNJ2WA

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/EDZNJ2WAQOYBJ2QM5VX5ZZA6DL \
  | 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: 20f2d4eac083b014ea0ced6fdce41e1af8dd3dffbeeb08e876836a12def053f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7104657512370995f4cd6b9f55f9bac90cecc39412d35cfa508c8615cc859f1a",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-06-17T18:41:53Z",
    "title_canon_sha256": "8bd3f1f93a59bf29899ea05fd5de9617ca574982bea6d789e1f12fe3f2ea4c58"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.3949",
    "kind": "arxiv",
    "version": 2
  }
}