Pith Number

pith:2XI36SD4

pith:2011:2XI36SD4PD2OMKEUZEXT4YL4LX

not attested not anchored not stored refs pending

Measurement of airborne 131I, 134Cs, and 137Cs nuclides due to the Fukushima reactors accident in air particulate in Milan (Italy)

Elena Sala, Ettore Fiorini, Ezio Previtali, Massimiliano Clemenza

arxiv:1106.4226 v1 · 2011-06-21 · physics.med-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{2XI36SD4PD2OMKEUZEXT4YL4LX}

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	2026-05-18T04:19:33.872603Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5d1bf487c78f4e62894c92f3e617c5de685f879c6a263c4e42fa2fd42a1d110

Aliases

arxiv: 1106.4226 · arxiv_version: 1106.4226v1 · doi: 10.48550/arxiv.1106.4226 · pith_short_12: 2XI36SD4PD2O · pith_short_16: 2XI36SD4PD2OMKEU · pith_short_8: 2XI36SD4

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/2XI36SD4PD2OMKEUZEXT4YL4LX \
  | 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: d5d1bf487c78f4e62894c92f3e617c5de685f879c6a263c4e42fa2fd42a1d110

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "917b1dee71a374876b3bb6cf3477f89166d9ccbbe765008ad9f2e1f7fe786096",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2011-06-21T15:14:19Z",
    "title_canon_sha256": "aa81eb6e83bd36e3ce0de86f98e685e11cd18460481e4ccec0eb5c5946d42079"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.4226",
    "kind": "arxiv",
    "version": 1
  }
}