Pith Number

pith:VXCY2OVK

pith:2012:VXCY2OVKPCUDSQX6BNCNOWKKCW

not attested not anchored not stored refs pending

The status of gamma-ray astronomy

Stefan Funk

arxiv:1204.4529 v1 · 2012-04-20 · astro-ph.HE · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VXCY2OVKPCUDSQX6BNCNOWKKCW}

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	2026-05-18T03:57:26.232920Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

adc58d3aaa78a83942fe0b44d7594a15bee6f130a59a93f0b7cf9dba94434405

Aliases

arxiv: 1204.4529 · arxiv_version: 1204.4529v1 · doi: 10.48550/arxiv.1204.4529 · pith_short_12: VXCY2OVKPCUD · pith_short_16: VXCY2OVKPCUDSQX6 · pith_short_8: VXCY2OVK

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/VXCY2OVKPCUDSQX6BNCNOWKKCW \
  | 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: adc58d3aaa78a83942fe0b44d7594a15bee6f130a59a93f0b7cf9dba94434405

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa789a85cd8bad016f69713558fa96cd50a7cabc6025b12d77df902d3139a1b2",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-04-20T04:34:06Z",
    "title_canon_sha256": "e72d028c497ddcda20372730e3caa1b68fc283a2b2834ab3bda4a31e8c5fdc49"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.4529",
    "kind": "arxiv",
    "version": 1
  }
}