Pith Number

pith:4FYNVNFB

pith:2009:4FYNVNFBQOAXB33TAHLV4K5GIM

not attested not anchored not stored refs pending

Self-referenced characterization of optical frequency combs and arbitrary waveforms using a simple, linear, zero-delay implementation of spectral shearing interferometry

Andrew M. Weiner, Christopher M. Long, Daniel E. Leaird, V. R. Supradeepa

arxiv:0911.0097 v3 · 2009-10-31 · physics.optics · 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{4FYNVNFBQOAXB33TAHLV4K5GIM}

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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	2026-05-18T04:25:01.776522Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e170dab4a1838170ef7301d75e2ba643026420841e0d60a14430c98bc44141b3

Aliases

arxiv: 0911.0097 · arxiv_version: 0911.0097v3 · doi: 10.48550/arxiv.0911.0097 · pith_short_12: 4FYNVNFBQOAX · pith_short_16: 4FYNVNFBQOAXB33T · pith_short_8: 4FYNVNFB

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/4FYNVNFBQOAXB33TAHLV4K5GIM \
  | 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: e170dab4a1838170ef7301d75e2ba643026420841e0d60a14430c98bc44141b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "963bbcbe517223a7cb506a08bd5b2b04c96f19af5d39921e8ce0ba7006a3a098",
    "cross_cats_sorted": [
      "physics.ins-det"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2009-10-31T17:20:29Z",
    "title_canon_sha256": "c25d0034f66dd0a992260e5a8337f31142c56c1a4f9a4840c8e35ff42886d7bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.0097",
    "kind": "arxiv",
    "version": 3
  }
}