Pith Number

pith:7QMPAASV

pith:2014:7QMPAASVUFHVGNAFMIDA6HKFAQ

not attested not anchored not stored refs pending

A transient event in AD 775 reported by al-Tabari: A bolide - not a nova, supernova, or kilonova

Paul Kunitzsch (LMU Munich), Ralph Neuhaeuser (U Jena)

arxiv:1408.2936 v3 · 2014-08-13 · physics.hist-ph · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7QMPAASVUFHVGNAFMIDA6HKFAQ}

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	2026-05-18T01:42:21.028341Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc18f00255a14f53340562060f1d4504389e5733e2f6ed30c7567327f846fedd

Aliases

arxiv: 1408.2936 · arxiv_version: 1408.2936v3 · doi: 10.48550/arxiv.1408.2936 · pith_short_12: 7QMPAASVUFHV · pith_short_16: 7QMPAASVUFHVGNAF · pith_short_8: 7QMPAASV

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/7QMPAASVUFHVGNAFMIDA6HKFAQ \
  | 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: fc18f00255a14f53340562060f1d4504389e5733e2f6ed30c7567327f846fedd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e817adcb4451aa0d43ccaf6c83d294a8664f98e9c59026d0f32b5bb179c66fb",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2014-08-13T08:13:37Z",
    "title_canon_sha256": "2f6dec64d73b401f247a8ff0c75b3e0bab21e28ccafe258fa5847cdaf3e43d65"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.2936",
    "kind": "arxiv",
    "version": 3
  }
}