Pith Number

pith:HPFBOZXM

pith:2004:HPFBOZXMJZEGWDDIWCOGZVEK3Q

not attested not anchored not stored refs pending

The Crab Nebula and Pulsar between 500 GeV and 80 TeV: Observations with the HEGRA stereoscopic air Cherenkov telescopes

F. Aharonian et al. (HEGRA collaboration)

arxiv:astro-ph/0407118 v1 · 2004-07-06 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HPFBOZXMJZEGWDDIWCOGZVEK3Q}

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.

Cited by

1 paper in Pith

Electron stability constrains neutrino time delays

Receipt and verification

First computed	2026-07-04T17:20:29.500945Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3bca1766ec4e486b0c68b09c6cd48adc3503407d34908cd1b168574131b60f1e

Aliases

arxiv: astro-ph/0407118 · arxiv_version: astro-ph/0407118v1 · doi: 10.48550/arxiv.astro-ph/0407118 · pith_short_12: HPFBOZXMJZEG · pith_short_16: HPFBOZXMJZEGWDDI · pith_short_8: HPFBOZXM

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/HPFBOZXMJZEGWDDIWCOGZVEK3Q \
  | 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: 3bca1766ec4e486b0c68b09c6cd48adc3503407d34908cd1b168574131b60f1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ee1bbbc1473ef5235b2b778cd40b938f180247f4d3a1ee8e7616cb25ae49b79",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-07-06T20:09:17Z",
    "title_canon_sha256": "76dfd10084c057e953c4aa95d8e441ad8c4073bb2ade04981033f040d97c214e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0407118",
    "kind": "arxiv",
    "version": 1
  }
}