Pith Number

pith:4TO7XGI2

pith:2017:4TO7XGI2JZ2LXDEWICV6V44WOR

not attested not anchored not stored refs pending

Incorporating an Optical Clock into a Time Scale

Jian Yao, Judah Levine, Neil Ashby, Thomas Parker

arxiv:1704.06323 v1 · 2017-04-20 · physics.app-ph · 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{4TO7XGI2JZ2LXDEWICV6V44WOR}

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	2026-05-18T00:45:59.998609Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4ddfb991a4e74bb8c9640abeaf3967455d704112899a87a003472916d6d440a

Aliases

arxiv: 1704.06323 · arxiv_version: 1704.06323v1 · doi: 10.48550/arxiv.1704.06323 · pith_short_12: 4TO7XGI2JZ2L · pith_short_16: 4TO7XGI2JZ2LXDEW · pith_short_8: 4TO7XGI2

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/4TO7XGI2JZ2LXDEWICV6V44WOR \
  | 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: e4ddfb991a4e74bb8c9640abeaf3967455d704112899a87a003472916d6d440a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "efe913e1ddb22cfa065eda5153c35ba034366c3b3d71d066ea28c9fc0c46a552",
    "cross_cats_sorted": [
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2017-04-20T20:08:50Z",
    "title_canon_sha256": "a6f131799779aa10bb0e496fb3ad4a189c6aaf89066a5a209f842e5132cb1e98"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.06323",
    "kind": "arxiv",
    "version": 1
  }
}