Pith Number

pith:SWCJLND4

pith:2000:SWCJLND464DRKDLDKPPY3DRUV7

not attested not anchored not stored refs pending

The Laser-Driven Vacuum Photodiode

Kirk T. McDonald

arxiv:physics/0003066 v1 · 2000-03-23 · physics.acc-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{SWCJLND464DRKDLDKPPY3DRUV7}

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	2026-07-04T14:43:14.031526Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

958495b47cf707150d6353df8d8e34afeffbfa7f411e0498b8e13739f53c5f0e

Aliases

arxiv: physics/0003066 · arxiv_version: physics/0003066v1 · doi: 10.48550/arxiv.physics/0003066 · pith_short_12: SWCJLND464DR · pith_short_16: SWCJLND464DRKDLD · pith_short_8: SWCJLND4

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/SWCJLND464DRKDLDKPPY3DRUV7 \
  | 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: 958495b47cf707150d6353df8d8e34afeffbfa7f411e0498b8e13739f53c5f0e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e5846842aa8280b219ab2f75230d671a99aa0d6c6fd915aaf32f253b2698183",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "physics.acc-ph",
    "submitted_at": "2000-03-23T22:58:41Z",
    "title_canon_sha256": "737eece9edb226834e79f0e514e7f0628a67c16c900994308bd4c2052bd90118"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0003066",
    "kind": "arxiv",
    "version": 1
  }
}