Pith Number

pith:DFMDPVRC

pith:2009:DFMDPVRCE3YWXGDAPDY5WJPT3T

not attested not anchored not stored refs pending

Phase-stabilized, 1.5-W frequency comb at 2.8 to 4.8 micron

Florian Adler, Ingmar Hartl, Jun Ye, Kevin C. Cossel, Martin E. Fermann, Michael J. Thorpe

arxiv:0902.1957 v1 · 2009-02-11 · 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{DFMDPVRCE3YWXGDAPDY5WJPT3T}

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	2026-05-18T02:14:48.283898Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

195837d62226f16b986078f1db25f3dcd28365758055bdfe02861539f061ea2c

Aliases

arxiv: 0902.1957 · arxiv_version: 0902.1957v1 · doi: 10.48550/arxiv.0902.1957 · pith_short_12: DFMDPVRCE3YW · pith_short_16: DFMDPVRCE3YWXGDA · pith_short_8: DFMDPVRC

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/DFMDPVRCE3YWXGDAPDY5WJPT3T \
  | 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: 195837d62226f16b986078f1db25f3dcd28365758055bdfe02861539f061ea2c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1fd3212ab9b8bba8ce8f8934459dc9470ade1ab573866a83a722ccb3870392e6",
    "cross_cats_sorted": [
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2009-02-11T18:32:01Z",
    "title_canon_sha256": "f788d48db3614fce30b6e8fdb7ec45af909c8260730450fc928cca52c0f6c9df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.1957",
    "kind": "arxiv",
    "version": 1
  }
}