Pith Number

pith:GC7JDAJD

pith:2021:GC7JDAJDNLZEF626G77FIPPCBQ

not attested not anchored not stored refs pending

Atomic Clocks in Space: A Search for Rubidium and Cesium Masers in M- and L-Dwarfs

Jeremy Darling

arxiv:2101.12298 v1 · 2021-01-28 · astro-ph.SR · 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{GC7JDAJDNLZEF626G77FIPPCBQ}

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	2026-07-05T02:10:42.627593Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

30be9181236af242fb5e37fe543de20c2da7a89c1dddbdb0af92d06a6298a639

Aliases

arxiv: 2101.12298 · arxiv_version: 2101.12298v1 · doi: 10.48550/arxiv.2101.12298 · pith_short_12: GC7JDAJDNLZE · pith_short_16: GC7JDAJDNLZEF626 · pith_short_8: GC7JDAJD

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/GC7JDAJDNLZEF626G77FIPPCBQ \
  | 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: 30be9181236af242fb5e37fe543de20c2da7a89c1dddbdb0af92d06a6298a639

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "afa6dd2fd5dec9b8d6954333146ec25e6066c757307dcef867ff0ae9d08176f0",
    "cross_cats_sorted": [
      "physics.atom-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-01-28T22:15:01Z",
    "title_canon_sha256": "bd19685972181eb9d35f9bab110babebde3a87450e94a90df6f4d26a26a23dfd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.12298",
    "kind": "arxiv",
    "version": 1
  }
}