Pith Number

pith:K4Q3QOXP

pith:2013:K4Q3QOXPEPNNFP64ASJNQWKILL

not attested not anchored not stored refs pending

White Paper for Blazar Observations with a GEMS-like X-ray Polarimetry Mission

Alice Harding (NASA/GSFC), Craig Markwardt (NASA/GSFC), Dong Lai (Cornell), Finland), Henric Krawczynski (Wash. Univ. in St. Louis), Herman Marshall (MIT), India), Japan), Jean Swank (NASA/GSFC), Jeffrey Martoff (Temple), Jeffrey Scargle (NASA/ARC), Jeremy Schnittman (NASA/GSFC), Jessie Dotson (NASA/ARC), Joanne Hill (NASA/GSFC), Julian Krolik (JHU), Juri Poutanen (U. Oula, Keith Jahoda (NASA/GSFC), Kevin Black (NASA/GSFC), Lorella Angelini (NASA/GSFC), Matthew Baring (Rice), Peter Serlemitsos (NASA/GSFC), Phillip Kaaret (U. Iowa), Pranab Ghosh (TIFR, Robert Petre (NASA/GSFC), Robin Morris (NASA/ARC), Stephen Reynolds (NCSU), Takashi Okajima (NASA/GSFC), Tim Kallman (NASA/GSFC), Tod Strohmayer (NASA/GSFC), Toru Tamagawa (Riken U., Wayne Baumgartner (NASA/GSFC), Yang Soong (NASA/GSFC), Yuzuru Tawara (Nagoya U.

arxiv:1303.7158 v1 · 2013-03-28 · 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{K4Q3QOXPEPNNFP64ASJNQWKILL}

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	2026-05-18T03:29:38.119298Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5721b83aef23dad2bfdc0492d859485ad78edba2abfd3cfe3d6a44479ca6b4e8

Aliases

arxiv: 1303.7158 · arxiv_version: 1303.7158v1 · doi: 10.48550/arxiv.1303.7158 · pith_short_12: K4Q3QOXPEPNN · pith_short_16: K4Q3QOXPEPNNFP64 · pith_short_8: K4Q3QOXP

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/K4Q3QOXPEPNNFP64ASJNQWKILL \
  | 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: 5721b83aef23dad2bfdc0492d859485ad78edba2abfd3cfe3d6a44479ca6b4e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94ddcd4d68575f58abeaf2ba38a4757313c87bc651107df6d299f65b8f0d9403",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-03-28T16:01:17Z",
    "title_canon_sha256": "b7b7457a6ee58961142be4dd867be8c07c61d46677a844febc39886bad881976"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.7158",
    "kind": "arxiv",
    "version": 1
  }
}