Pith Number

pith:FCJ4CWSZ

pith:2011:FCJ4CWSZVYA43TSSGRAAPNBWCK

not attested not anchored not stored refs pending

High resolution stopwatch for cents

Katalin Kopasz, Zoltan gingl

arxiv:1102.2006 v1 · 2011-02-09 · physics.pop-ph · physics.ed-ph · physics.ins-det

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FCJ4CWSZVYA43TSSGRAAPNBWCK}

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	2026-05-18T04:19:02.159909Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2893c15a59ae01cdce52344007b43612a456a47af804ab303a5b453a76deb4da

Aliases

arxiv: 1102.2006 · arxiv_version: 1102.2006v1 · doi: 10.48550/arxiv.1102.2006 · pith_short_12: FCJ4CWSZVYA4 · pith_short_16: FCJ4CWSZVYA43TSS · pith_short_8: FCJ4CWSZ

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/FCJ4CWSZVYA43TSSGRAAPNBWCK \
  | 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: 2893c15a59ae01cdce52344007b43612a456a47af804ab303a5b453a76deb4da

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f5139c57a47abfa5a4ea6f5e92a862eed9edfd21561f986b1de6d077013c788",
    "cross_cats_sorted": [
      "physics.ed-ph",
      "physics.ins-det"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2011-02-09T23:23:01Z",
    "title_canon_sha256": "bd46269fca6c8ceb5ddbb4e20a2943167c66bf39bfd5ff824366f37211c64632"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.2006",
    "kind": "arxiv",
    "version": 1
  }
}