Pith Number

pith:ST7U6XE5

pith:2012:ST7U6XE5VPV2IZZQ2OFY4DUEXS

not attested not anchored not stored refs pending

Widely-tunable mid-IR frequency comb source based on difference frequency generation

Alessio Gambetta, Axel Ruehl, Ingmar Hartl, Kjeld S. E. Eikema, Marco Marangoni, Martin E. Fermann

arxiv:1203.2441 v1 · 2012-03-12 · 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{ST7U6XE5VPV2IZZQ2OFY4DUEXS}

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	2026-05-18T04:00:25.449996Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94ff4f5c9dabeba46730d38b8e0e84bc8f34178367b977e3b47f52b51cb4a265

Aliases

arxiv: 1203.2441 · arxiv_version: 1203.2441v1 · doi: 10.48550/arxiv.1203.2441 · pith_short_12: ST7U6XE5VPV2 · pith_short_16: ST7U6XE5VPV2IZZQ · pith_short_8: ST7U6XE5

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/ST7U6XE5VPV2IZZQ2OFY4DUEXS \
  | 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: 94ff4f5c9dabeba46730d38b8e0e84bc8f34178367b977e3b47f52b51cb4a265

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7af93eb4cbdca42f744f4f1f3d806ae1d06092055d6507bba1717ad5da40c2c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2012-03-12T10:02:28Z",
    "title_canon_sha256": "5908b6cc24b0ddac0b158b6ae922f48b46feced94531dfcd8275cbbe39cd62eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.2441",
    "kind": "arxiv",
    "version": 1
  }
}