Pith Number

pith:WI5GCOHD

pith:2012:WI5GCOHDF2ABZGJ2ZEQA5CQ6JN

not attested not anchored not stored refs pending

Comparison of Two Independent Sr Optical Clocks with 1e-17 Stability at 10^3 s

B. J. Bloom, J. R. Williams, J. Ye, M. Bishof, M. D. Swallows, M. J. Martin, S. L. Campbell, T. L. Nicholson

arxiv:1210.0064 v2 · 2012-09-29 · 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{WI5GCOHDF2ABZGJ2ZEQA5CQ6JN}

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	2026-05-18T02:54:12.884844Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b23a6138e32e801c993ac9200e8a1e4b450999dd779c8422ae5cd86cf7a61d39

Aliases

arxiv: 1210.0064 · arxiv_version: 1210.0064v2 · doi: 10.48550/arxiv.1210.0064 · pith_short_12: WI5GCOHDF2AB · pith_short_16: WI5GCOHDF2ABZGJ2 · pith_short_8: WI5GCOHD

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/WI5GCOHDF2ABZGJ2ZEQA5CQ6JN \
  | 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: b23a6138e32e801c993ac9200e8a1e4b450999dd779c8422ae5cd86cf7a61d39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dbf7d57f53656106845f5c061fdfec900b8b63161011ec9720f7de6b02248ae3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2012-09-29T01:05:04Z",
    "title_canon_sha256": "31c8987c025bc76fa0d80da4831e1ec3937d906369d2ff667b7d6124678dc1b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.0064",
    "kind": "arxiv",
    "version": 2
  }
}