Pith Number

pith:C7DZK3KJ

pith:1999:C7DZK3KJQXAASHJDN4D4RAZTR5

not attested not anchored not stored refs pending

Investigations of Positron Annihilation Radiation

D.D.Dixon, J.D.Kurfess, M.D.Leising, P.A.Milne, R.L.Kinzer

arxiv:astro-ph/9911184 v1 · 1999-11-10 · 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{C7DZK3KJQXAASHJDN4D4RAZTR5}

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	2026-07-04T16:11:53.618679Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17c7956d4985c0091d236f07c883338f7fa202fea98173d76a2ef73c3b5adbca

Aliases

arxiv: astro-ph/9911184 · arxiv_version: astro-ph/9911184v1 · doi: 10.48550/arxiv.astro-ph/9911184 · pith_short_12: C7DZK3KJQXAA · pith_short_16: C7DZK3KJQXAASHJD · pith_short_8: C7DZK3KJ

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/C7DZK3KJQXAASHJDN4D4RAZTR5 \
  | 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: 17c7956d4985c0091d236f07c883338f7fa202fea98173d76a2ef73c3b5adbca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26c8c58b6f676f03b45a5805cc888de0cd44635e868593e05c5d87583fca8dbe",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-11-10T20:30:34Z",
    "title_canon_sha256": "30de01bb3b74e906016802d5b894e28bf555a002d851d5470720ca04a89f5d31"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9911184",
    "kind": "arxiv",
    "version": 1
  }
}