Pith Number

pith:4VXUPSIM

pith:2012:4VXUPSIM4OHYART2LBGUXHEPRM

not attested not anchored not stored refs pending

Generation of a 650 nm - 2000 nm Laser Frequency Comb based on an Erbium-Doped Fiber Laser

Gabriel Ycas, Scott A. Diddams, Steve Osterman

arxiv:1202.1855 v2 · 2012-02-08 · physics.optics · astro-ph.IM · 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{4VXUPSIM4OHYART2LBGUXHEPRM}

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	2026-05-18T03:10:55.946144Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e56f47c90ce38f80467a584d4b9c8f8b06d40a8d2d27e1ebe3c611b1a3f1cd49

Aliases

arxiv: 1202.1855 · arxiv_version: 1202.1855v2 · doi: 10.48550/arxiv.1202.1855 · pith_short_12: 4VXUPSIM4OHY · pith_short_16: 4VXUPSIM4OHYART2 · pith_short_8: 4VXUPSIM

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/4VXUPSIM4OHYART2LBGUXHEPRM \
  | 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: e56f47c90ce38f80467a584d4b9c8f8b06d40a8d2d27e1ebe3c611b1a3f1cd49

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8e26e17e1c72055c5e74ae45861959677ed53c59f750cd12fe721eda8adad4a",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2012-02-08T23:08:12Z",
    "title_canon_sha256": "560d40553b1f6a3f8f19ceae03ddca43fd0875409d685320aa8eb27678915d14"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.1855",
    "kind": "arxiv",
    "version": 2
  }
}