Pith Number

pith:QDPH5HEE

pith:2005:QDPH5HEEYXMYU3JNQNT3K5GGJH

not attested not anchored not stored refs pending

Observations of Mkn 421 in 2004 with H.E.S.S. at large zenith angles

et al., H.E.S.S. Collaboration: F. Aharonian

arxiv:astro-ph/0506319 v1 · 2005-06-14 · 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{QDPH5HEEYXMYU3JNQNT3K5GGJH}

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	2026-05-18T03:47:43.508647Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80de7e9c84c5d98a6d2d8367b574c649e2b070dfde927697acf837a3f6735596

Aliases

arxiv: astro-ph/0506319 · arxiv_version: astro-ph/0506319v1 · doi: 10.48550/arxiv.astro-ph/0506319 · pith_short_12: QDPH5HEEYXMY · pith_short_16: QDPH5HEEYXMYU3JN · pith_short_8: QDPH5HEE

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/QDPH5HEEYXMYU3JNQNT3K5GGJH \
  | 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: 80de7e9c84c5d98a6d2d8367b574c649e2b070dfde927697acf837a3f6735596

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1689600a9ee930e59ce4ba3f31d11c2cd0737e687c63396995bfb73ddaa7951b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-06-14T20:00:06Z",
    "title_canon_sha256": "0fb65d6f18a51689c9af0c2736a85b1596239e1b0106191c273416efb0b39c98"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0506319",
    "kind": "arxiv",
    "version": 1
  }
}