Pith Number

pith:4FBZZFI2

pith:2011:4FBZZFI2AZPDBCVWF3QVX7MEDS

not attested not anchored not stored refs pending

New evaluation of neutron lifetime from UCN storage experiments and beam experiments

A. K. Fomin, A. P. Serebrov

arxiv:1104.4238 v1 · 2011-04-21 · 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{4FBZZFI2AZPDBCVWF3QVX7MEDS}

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	2026-05-18T04:23:44.785629Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1439c951a065e308ab62ee15bfd841c88c9a5bf399e3c55a2adf92efaf372b3

Aliases

arxiv: 1104.4238 · arxiv_version: 1104.4238v1 · doi: 10.48550/arxiv.1104.4238 · pith_short_12: 4FBZZFI2AZPD · pith_short_16: 4FBZZFI2AZPDBCVW · pith_short_8: 4FBZZFI2

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/4FBZZFI2AZPDBCVWF3QVX7MEDS \
  | 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: e1439c951a065e308ab62ee15bfd841c88c9a5bf399e3c55a2adf92efaf372b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13840adf8273e71a1655c6c7d7067d942a92dd1a5993f172578c4d2a0d6324d0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nucl-ex",
    "submitted_at": "2011-04-21T11:42:28Z",
    "title_canon_sha256": "4e97a7cbb38128d537538e79e26b3130a6f501dd45fefa1c0c94cfa1b068c320"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.4238",
    "kind": "arxiv",
    "version": 1
  }
}