Pith Number

pith:2M6QEDS4

pith:2015:2M6QEDS4BA5FCMUJWYVO5NZNFB

not attested not anchored not stored refs pending

Least-squares analysis of clock frequency comparison data to deduce optimized frequency and frequency ratio values

H. S. Margolis, P. Gill

arxiv:1504.01633 v1 · 2015-04-07 · physics.data-an · 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{2M6QEDS4BA5FCMUJWYVO5NZNFB}

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	2026-05-18T01:31:39.772719Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d33d020e5c083a513289b62aeeb72d285a3646999318ad2072cecce0d93ad985

Aliases

arxiv: 1504.01633 · arxiv_version: 1504.01633v1 · doi: 10.48550/arxiv.1504.01633 · pith_short_12: 2M6QEDS4BA5F · pith_short_16: 2M6QEDS4BA5FCMUJ · pith_short_8: 2M6QEDS4

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/2M6QEDS4BA5FCMUJWYVO5NZNFB \
  | 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: d33d020e5c083a513289b62aeeb72d285a3646999318ad2072cecce0d93ad985

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9bca735d27c6dcf0effe426ec1514437a1dc8806be670f65971c4d8050a8a1e7",
    "cross_cats_sorted": [
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.data-an",
    "submitted_at": "2015-04-07T15:15:52Z",
    "title_canon_sha256": "f9c43cd7e72e7a89a2708dcd65f0cf8a985623c5def34451db78c5c249335712"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.01633",
    "kind": "arxiv",
    "version": 1
  }
}