Pith Number

pith:X2Y7C3WL

pith:2015:X2Y7C3WL47HW5D3SVGCRC6P7NZ

not attested not anchored not stored refs pending

Gammapy - A Python package for {\gamma}-ray astronomy

Axel Donath, Christoph Deil, Ellis Owen, Ignasi Reichardt, Johannes King, Jon Harris, Manuel Paz Arribas, R\'egis Terrier, Rolf B\"uhler, Stefan Klepser

arxiv:1509.07408 v2 · 2015-09-24 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X2Y7C3WL47HW5D3SVGCRC6P7NZ}

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	2026-05-18T01:30:57.348220Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

beb1f16ecbe7cf6e8f72a9851179ff6e564302ea3e8c0bbaa9e54a99d147e323

Aliases

arxiv: 1509.07408 · arxiv_version: 1509.07408v2 · doi: 10.48550/arxiv.1509.07408 · pith_short_12: X2Y7C3WL47HW · pith_short_16: X2Y7C3WL47HW5D3S · pith_short_8: X2Y7C3WL

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/X2Y7C3WL47HW5D3SVGCRC6P7NZ \
  | 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: beb1f16ecbe7cf6e8f72a9851179ff6e564302ea3e8c0bbaa9e54a99d147e323

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2bd33c6645292db0adec8ccabf5b19fb27e6059e51a174618064b42eef0cd427",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2015-09-24T15:35:30Z",
    "title_canon_sha256": "a96e8745ce712b6b5a5be2fa301ede563a901ae5f5cd365b1f55f4960def54d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.07408",
    "kind": "arxiv",
    "version": 2
  }
}