Pith Number

pith:4LDXTAM4

pith:2014:4LDXTAM4Q6QJB6CXMBBGZLJALT

not attested not anchored not stored refs pending

GRB 140515A at z=6.33: Constraints on the End of Reionization From a Gamma-ray Burst in a Low Hydrogen Column Density Environment

((1) Harvard-Smithsonian Center for Astrophysics, (2) Penn State, (3) Gemini), D. B. Fox (2), E. Berger (1), K. C. Roth (3), R. Chornock (1), T. Laskar (1), W. Fong (1)

arxiv:1405.7400 v1 · 2014-05-28 · astro-ph.CO · astro-ph.GA · 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{4LDXTAM4Q6QJB6CXMBBGZLJALT}

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	2026-05-18T02:50:51.313068Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2c779819c87a090f85760426cad205ceff6bac605367001716b6e925730d1b3

Aliases

arxiv: 1405.7400 · arxiv_version: 1405.7400v1 · doi: 10.48550/arxiv.1405.7400 · pith_short_12: 4LDXTAM4Q6QJ · pith_short_16: 4LDXTAM4Q6QJB6CX · pith_short_8: 4LDXTAM4

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/4LDXTAM4Q6QJB6CXMBBGZLJALT \
  | 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: e2c779819c87a090f85760426cad205ceff6bac605367001716b6e925730d1b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "960d6c694b5d56614a11fcb93f1ad8864974330b5e39ca7a694e01955d270ef7",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2014-05-28T21:12:05Z",
    "title_canon_sha256": "e97bae25ec280c55e63787d3d78488907180b4daf44214169b39329a520d7280"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.7400",
    "kind": "arxiv",
    "version": 1
  }
}