Pith Number

pith:LHOSRTTT

pith:2009:LHOSRTTTJKBOKOKIBSMPGWB3WD

not attested not anchored not stored refs pending

Simultaneous Multiwavelength Observations of Markarian 421 During Outburst

A. Ibarra, I. de la Calle Perez, P. Rodriguez, the MAGIC Collaboration, the VERITAS collaboration

arxiv:0907.3923 v1 · 2009-07-22 · 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{LHOSRTTTJKBOKOKIBSMPGWB3WD}

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	2026-05-18T02:12:54.517226Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59dd28ce734a82e539480c98f3583bb0ec6a95c3f87d504990ca508c40b373f2

Aliases

arxiv: 0907.3923 · arxiv_version: 0907.3923v1 · doi: 10.48550/arxiv.0907.3923 · pith_short_12: LHOSRTTTJKBO · pith_short_16: LHOSRTTTJKBOKOKI · pith_short_8: LHOSRTTT

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/LHOSRTTTJKBOKOKIBSMPGWB3WD \
  | 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: 59dd28ce734a82e539480c98f3583bb0ec6a95c3f87d504990ca508c40b373f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a723ae623f9bc32ebb08a327e28702ab4c8ff0cf672d95bed9a8858ed1d5172a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-07-22T20:12:03Z",
    "title_canon_sha256": "17161839a9d337971794265d668fbcfd7e62c79fdbca072e4a1764790be68696"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.3923",
    "kind": "arxiv",
    "version": 1
  }
}