Pith Number

pith:7YPW7JK7

pith:2011:7YPW7JK72376M5E72USC5I4JEF

not attested not anchored not stored refs pending

Ar-39 Detection at the 10^-16 Isotopic Abundance Level with Atom Trap Trace Analysis

A.M. Davis, K. Bailey, N.C. Sturchio, P. Mueller, R. Purtschert, S.-M. Hu, T.P. O'Connor, W. D. Williams, W. Jiang, Y.R. Sun, Z.-T. Lu

arxiv:1101.2933 v1 · 2011-01-15 · physics.atom-ph · nucl-ex

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7YPW7JK72376M5E72USC5I4JEF}

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	2026-05-18T04:26:56.255708Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe1f6fa55fd6ffe6749fd5242ea389214350dba84217e2b1a57401a014544a4b

Aliases

arxiv: 1101.2933 · arxiv_version: 1101.2933v1 · doi: 10.48550/arxiv.1101.2933 · pith_short_12: 7YPW7JK72376 · pith_short_16: 7YPW7JK72376M5E7 · pith_short_8: 7YPW7JK7

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/7YPW7JK72376M5E72USC5I4JEF \
  | 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: fe1f6fa55fd6ffe6749fd5242ea389214350dba84217e2b1a57401a014544a4b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "977b6183a9de049f7a379a2df71ccb4cd6303ed62d4ce3bce2de0ecb937140ff",
    "cross_cats_sorted": [
      "nucl-ex"
    ],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2011-01-15T00:38:12Z",
    "title_canon_sha256": "249010e42540d37d313266aecbcba74e0c35ba78183401684afa72f574ea6546"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.2933",
    "kind": "arxiv",
    "version": 1
  }
}