Pith Number

pith:UAHHP3VF

pith:2019:UAHHP3VFGTZ665E6FXG6HW63SN

not attested not anchored not stored refs pending

Time dependent spectral modeling of Markarian 421 during a violent outburst in 2010

A. P. Marscher, B. Banerjee, K. E. Williamson, M. Joshi, P. Majumdar, S. G. Jorstad

arxiv:1905.01043 v1 · 2019-05-03 · 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{UAHHP3VFGTZ665E6FXG6HW63SN}

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	2026-05-17T23:44:54.058093Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a00e77eea534f3ef749e2dcde3dbdb937dd8a4ac395ed666ac0b450fd00f2ebf

Aliases

arxiv: 1905.01043 · arxiv_version: 1905.01043v1 · doi: 10.48550/arxiv.1905.01043 · pith_short_12: UAHHP3VFGTZ6 · pith_short_16: UAHHP3VFGTZ665E6 · pith_short_8: UAHHP3VF

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/UAHHP3VFGTZ665E6FXG6HW63SN \
  | 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: a00e77eea534f3ef749e2dcde3dbdb937dd8a4ac395ed666ac0b450fd00f2ebf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a0b8c814a6ac375ab0128567aab53ce03514b373aea294419d917831daf6aaf",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-05-03T06:44:30Z",
    "title_canon_sha256": "edaee5a347411904e6f9aa8fb5020ee0c183d6fdf5574523868fe00bda837501"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.01043",
    "kind": "arxiv",
    "version": 1
  }
}