Pith Number

pith:42FNOG43

pith:2001:42FNOG43EVBG7MJ6DS6FL3WX7S

not attested not anchored not stored refs pending

A Measurement of Secondary Muon Angular Distributions

C. D'Andrea, J. Poirier

arxiv:astro-ph/0109490 v1 · 2001-09-26 · 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{42FNOG43EVBG7MJ6DS6FL3WX7S}

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	2026-07-04T14:11:30.444368Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e68ad71b9b25426fb13e1cbc55eed7fc8ddf204b1faf8cc26ce00b422ebfcf77

Aliases

arxiv: astro-ph/0109490 · arxiv_version: astro-ph/0109490v1 · doi: 10.48550/arxiv.astro-ph/0109490 · pith_short_12: 42FNOG43EVBG · pith_short_16: 42FNOG43EVBG7MJ6 · pith_short_8: 42FNOG43

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/42FNOG43EVBG7MJ6DS6FL3WX7S \
  | 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: e68ad71b9b25426fb13e1cbc55eed7fc8ddf204b1faf8cc26ce00b422ebfcf77

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0dc5ef87423ab59ce9ee759cb693d43323a267108b8d2c084ed8563a1cd6ee23",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-09-26T18:01:41Z",
    "title_canon_sha256": "ddd8ea86f674caffb1336e0fa25527c8a7af6adb6750e4972c68806e76396e12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0109490",
    "kind": "arxiv",
    "version": 1
  }
}