Pith Number

pith:QPXEN7PZ

pith:2010:QPXEN7PZKGO7KKQBEGL5X2ARMF

not attested not anchored not stored refs pending

On active drains and causality

Paul Kinsler

arxiv:1008.2088 v3 · 2010-08-12 · physics.optics

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QPXEN7PZKGO7KKQBEGL5X2ARMF}

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	2026-05-18T02:46:04.841483Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83ee46fdf9519df52a012197dbe8116152223468d504a0824609bd2d90f72ed4

Aliases

arxiv: 1008.2088 · arxiv_version: 1008.2088v3 · doi: 10.48550/arxiv.1008.2088 · pith_short_12: QPXEN7PZKGO7 · pith_short_16: QPXEN7PZKGO7KKQB · pith_short_8: QPXEN7PZ

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/QPXEN7PZKGO7KKQBEGL5X2ARMF \
  | 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: 83ee46fdf9519df52a012197dbe8116152223468d504a0824609bd2d90f72ed4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f73eee8c80bcb95ec87f41bfb995cf7e386c9fff63cc7f2f3fe59becc6c64f1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2010-08-12T10:48:54Z",
    "title_canon_sha256": "6f3e0771814f54070fa56b91f4cc55e95ecc20701b37c164bd43cf1dd0235e0a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.2088",
    "kind": "arxiv",
    "version": 3
  }
}