Pith Number

pith:PFK7R2KB

pith:2018:PFK7R2KBX5YETTR77R65HDKPAA

not attested not anchored not stored refs pending

Two-photon optical frequency reference with active ac Stark shift cancellation

K. Beloy, V. Gerginov

arxiv:1808.01373 v1 · 2018-08-03 · 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{PFK7R2KBX5YETTR77R65HDKPAA}

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	2026-05-18T00:08:53.199204Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7955f8e941bf7049ce3ffc7dd38d4f0033b662cd7a0067727c04a15e641211b5

Aliases

arxiv: 1808.01373 · arxiv_version: 1808.01373v1 · doi: 10.48550/arxiv.1808.01373 · pith_short_12: PFK7R2KBX5YE · pith_short_16: PFK7R2KBX5YETTR7 · pith_short_8: PFK7R2KB

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/PFK7R2KBX5YETTR77R65HDKPAA \
  | 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: 7955f8e941bf7049ce3ffc7dd38d4f0033b662cd7a0067727c04a15e641211b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ff26fa4643bff26768eb519c4df074cac56dabee3a1c1a69b9bc7470d7eeb61",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2018-08-03T21:56:22Z",
    "title_canon_sha256": "515cb4438b0a2636096cd0d5ff6411ec9c884ccdad336710cb00a0cfb3193813"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.01373",
    "kind": "arxiv",
    "version": 1
  }
}