Pith Number

pith:MK43OO7C

pith:2003:MK43OO7C4ENXO4B4SL2LXNJD7O

not attested not anchored not stored refs pending

A New Method of Measuring 81Kr and 85Kr Abundances in Environmental Samples

B. E. Lehmann, K. Bailey, L. Young, N. C. Sturchio, P. Mueller, R. Lorenzo, R. Purtschert, T. P. O'Connor, X. Du, Z.-T. Lu

arxiv:physics/0311118 v1 · 2003-11-25 · physics.atom-ph · physics.geo-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{MK43OO7C4ENXO4B4SL2LXNJD7O}

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	2026-05-18T01:38:08.623195Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

62b9b73be2e11b77703c92f4bbb523fb95f77678267349428c1ff97aeaa8f5c0

Aliases

arxiv: physics/0311118 · arxiv_version: physics/0311118v1 · doi: 10.48550/arxiv.physics/0311118 · pith_short_12: MK43OO7C4ENX · pith_short_16: MK43OO7C4ENXO4B4 · pith_short_8: MK43OO7C

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/MK43OO7C4ENXO4B4SL2LXNJD7O \
  | 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: 62b9b73be2e11b77703c92f4bbb523fb95f77678267349428c1ff97aeaa8f5c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "037a49550b840c8a94ab8911f2f241f45359597a931e961c45a975b1cfe4703d",
    "cross_cats_sorted": [
      "physics.geo-ph"
    ],
    "license": "",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2003-11-25T17:17:40Z",
    "title_canon_sha256": "93091434f3909c86a6577d7d08cee78f34f4d1f75e299ab726c9227af4097212"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0311118",
    "kind": "arxiv",
    "version": 1
  }
}