Pith Number

pith:OUL23525

pith:2012:OUL23525OFCQBU6UNCVUN3FV5J

not attested not anchored not stored refs pending

Mid-infrared frequency comb spanning an octave based on an Er fiber laser and difference-frequency generation

Fritz Keilmann, Sergiu Amarie

arxiv:1202.5845 v2 · 2012-02-27 · quant-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{OUL23525OFCQBU6UNCVUN3FV5J}

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	2026-05-18T01:58:19.485211Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7517adf75d714500d3d468ab46ecb5ea67126ab38081ded04ea98da8a02415ff

Aliases

arxiv: 1202.5845 · arxiv_version: 1202.5845v2 · doi: 10.48550/arxiv.1202.5845 · pith_short_12: OUL23525OFCQ · pith_short_16: OUL23525OFCQBU6U · pith_short_8: OUL23525

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/OUL23525OFCQBU6UNCVUN3FV5J \
  | 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: 7517adf75d714500d3d468ab46ecb5ea67126ab38081ded04ea98da8a02415ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "325b4a86920093315855bac26beb756badbeac79bea8efe5da5ce6045dd272e6",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-02-27T07:59:07Z",
    "title_canon_sha256": "a39f14d84b4ca5322f9577ccc408c0ce7acde5af6e8e781b66108d58b5353641"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.5845",
    "kind": "arxiv",
    "version": 2
  }
}