Pith Number

pith:7PT7AJTQ

pith:2015:7PT7AJTQVZXJQKLHHXAHC77G7N

not attested not anchored not stored refs pending

Sub-kHz linewidth narrowing of a mid-infrared OPO idler frequency by direct cavity stabilization

I. Ricciardi, L. Santamaria, M. De Rosa, M. Parisi, P. De Natale, P. Maddaloni, S. Mosca

arxiv:1507.08519 v1 · 2015-07-30 · 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{7PT7AJTQVZXJQKLHHXAHC77G7N}

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	2026-05-18T01:20:01.522575Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbe7f02670ae6e9829673dc0717fe6fb48a6fb2ee549df4d1a4e49ebf77942c5

Aliases

arxiv: 1507.08519 · arxiv_version: 1507.08519v1 · doi: 10.48550/arxiv.1507.08519 · pith_short_12: 7PT7AJTQVZXJ · pith_short_16: 7PT7AJTQVZXJQKLH · pith_short_8: 7PT7AJTQ

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/7PT7AJTQVZXJQKLHHXAHC77G7N \
  | 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: fbe7f02670ae6e9829673dc0717fe6fb48a6fb2ee549df4d1a4e49ebf77942c5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7643a2fd26885f161e1e6dbc939fa22e00803fdb0ccccfcbc0c96ed378e3fcda",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2015-07-30T14:45:21Z",
    "title_canon_sha256": "030acac528c51dcdbf91d4e35b98bc5efd5c5afc0df383823877f850f4906696"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.08519",
    "kind": "arxiv",
    "version": 1
  }
}