Pith Number

pith:FEG4V4LM

pith:2012:FEG4V4LMT3MHMWFRG7M5MOMQRL

not attested not anchored not stored refs pending

The Pulse Intensity-Duration Conjecture: Evidence from Free-Electron Lasers

F. Gr\"uner, G. Mourou, I. Dornmair, T. Seggebrock, T. Tajima

arxiv:1208.0741 v1 · 2012-08-03 · physics.acc-ph · 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{FEG4V4LMT3MHMWFRG7M5MOMQRL}

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	2026-05-18T03:49:22.940254Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

290dcaf16c9ed87658b137d9d639908af18eaa1d5bda370945c1db760d686145

Aliases

arxiv: 1208.0741 · arxiv_version: 1208.0741v1 · doi: 10.48550/arxiv.1208.0741 · pith_short_12: FEG4V4LMT3MH · pith_short_16: FEG4V4LMT3MHMWFR · pith_short_8: FEG4V4LM

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/FEG4V4LMT3MHMWFRG7M5MOMQRL \
  | 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: 290dcaf16c9ed87658b137d9d639908af18eaa1d5bda370945c1db760d686145

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "276251f85da3eb6e577d6b1e48fa863d8c306d31c4792decd974bbab2d9c5771",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.acc-ph",
    "submitted_at": "2012-08-03T13:46:30Z",
    "title_canon_sha256": "8d16c324f0bc532595a2ca18fcaa68e1cb95551a8ac75d569353fbba77dc0fa4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.0741",
    "kind": "arxiv",
    "version": 1
  }
}