Pith Number

pith:HAMH3P2G

pith:1997:HAMH3P2GYL2P75NOV7IKT5M3F3

not attested not anchored not stored refs pending

Gamma rays and neutrinos from the Crab Nebula produced by pulsar accelerated nuclei

R.J. Protheroe, W. Bednarek

arxiv:astro-ph/9704186 v1 · 1997-04-18 · 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{HAMH3P2GYL2P75NOV7IKT5M3F3}

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	2026-05-18T04:34:29.143282Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38187dbf46c2f4fff5aeafd0a9f59b2ed1c906c4cfc57c902b4c5ce7b91e27a7

Aliases

arxiv: astro-ph/9704186 · arxiv_version: astro-ph/9704186v1 · doi: 10.48550/arxiv.astro-ph/9704186 · pith_short_12: HAMH3P2GYL2P · pith_short_16: HAMH3P2GYL2P75NO · pith_short_8: HAMH3P2G

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/HAMH3P2GYL2P75NOV7IKT5M3F3 \
  | 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: 38187dbf46c2f4fff5aeafd0a9f59b2ed1c906c4cfc57c902b4c5ce7b91e27a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67b362b4d51c25962f02d8f2f63d86b7459bbf9e800b669ced3ed076525de0a2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-04-18T05:52:47Z",
    "title_canon_sha256": "e3c0e887edf71e2f4e94fb2802f31b607d23a267b16b09d2d23f2635fc2c2a58"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9704186",
    "kind": "arxiv",
    "version": 1
  }
}