Pith Number

pith:NK37EUES

pith:2011:NK37EUES4AJBLOF64LKKHRD2XX

not attested not anchored not stored refs pending

Deciphering the measured ratios of Iodine-131 to Cesium-137 at the Fukushima reactors

T. Matsui

arxiv:1105.0242 v3 · 2011-05-02 · nucl-th · nucl-ex · physics.soc-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{NK37EUES4AJBLOF64LKKHRD2XX}

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	2026-05-18T04:05:28.260521Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ab7f25092e01215b8bee2d4a3c47abdc49dd92df6bd30deea28e6c05c822ed9

Aliases

arxiv: 1105.0242 · arxiv_version: 1105.0242v3 · doi: 10.48550/arxiv.1105.0242 · pith_short_12: NK37EUES4AJB · pith_short_16: NK37EUES4AJBLOF6 · pith_short_8: NK37EUES

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/NK37EUES4AJBLOF64LKKHRD2XX \
  | 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: 6ab7f25092e01215b8bee2d4a3c47abdc49dd92df6bd30deea28e6c05c822ed9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "452fa90d080aaca2a544ac1fba4a7e9ec96f459815afd09696903947a91469b7",
    "cross_cats_sorted": [
      "nucl-ex",
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nucl-th",
    "submitted_at": "2011-05-02T05:21:42Z",
    "title_canon_sha256": "140299499f9e3bcd11732c932f116b5c8bb5224ae591a8accc253e7ddd735986"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.0242",
    "kind": "arxiv",
    "version": 3
  }
}