Pith Number

pith:7XXCWYAE

pith:2012:7XXCWYAEE4EBJKWH4WW467CMEU

not attested not anchored not stored refs pending

Possible Detection of Apparent Superluminal inward motion in Markarian 421 after the Giant X-ray flare in February, 2010

H. Nagai, K. Asada, K. E. Gabanyi, K. Fujisawa, K. Hada, K. Niinuma, M. Kino, N. Isobe, S. Koyama, T. Oyama

arxiv:1209.2466 v1 · 2012-09-12 · astro-ph.HE · 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{7XXCWYAEE4EBJKWH4WW467CMEU}

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	2026-05-18T01:54:30.221034Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fdee2b6004270814aac7e5adcf7c4c251981fc43a444de43bd5d50530556d9be

Aliases

arxiv: 1209.2466 · arxiv_version: 1209.2466v1 · doi: 10.48550/arxiv.1209.2466 · pith_short_12: 7XXCWYAEE4EB · pith_short_16: 7XXCWYAEE4EBJKWH · pith_short_8: 7XXCWYAE

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/7XXCWYAEE4EBJKWH4WW467CMEU \
  | 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: fdee2b6004270814aac7e5adcf7c4c251981fc43a444de43bd5d50530556d9be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9b77c204760a679648e8fe65792b958e090a5fb5816bdce3a189d8dab347ee5",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-09-12T00:35:10Z",
    "title_canon_sha256": "9c45419012dc3d7775c0e66bc24479e01f2484451eee63fddda0d1736da42572"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.2466",
    "kind": "arxiv",
    "version": 1
  }
}