Pith Number

pith:6SVNTKXH

pith:2012:6SVNTKXHEQ2M2XJETIELHOL25U

not attested not anchored not stored refs pending

Beyond Attoseconds

A. E. Kaplan

arxiv:1207.7168 v1 · 2012-07-31 · physics.optics · physics.atom-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{6SVNTKXHEQ2M2XJETIELHOL25U}

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	2026-05-18T03:43:39.914857Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4aad9aae72434cd5d249a08b3b97aed0278f948ce0e8a4dd958e0b35e2b3a3e

Aliases

arxiv: 1207.7168 · arxiv_version: 1207.7168v1 · doi: 10.48550/arxiv.1207.7168 · pith_short_12: 6SVNTKXHEQ2M · pith_short_16: 6SVNTKXHEQ2M2XJE · pith_short_8: 6SVNTKXH

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/6SVNTKXHEQ2M2XJETIELHOL25U \
  | 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: f4aad9aae72434cd5d249a08b3b97aed0278f948ce0e8a4dd958e0b35e2b3a3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6a38cd71eb288c9df5b7c17566495c9333b17e3019d394f8e757619544cead7",
    "cross_cats_sorted": [
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2012-07-31T05:00:15Z",
    "title_canon_sha256": "05ba8007fbd4bfe6d5af2989a520203e7d97bc2842c5bfe5b59e016739f22b66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.7168",
    "kind": "arxiv",
    "version": 1
  }
}