Pith Number

pith:P7NUPCMM

pith:2020:P7NUPCMM3ASVSHJVMFJ2WSGRUY

not attested not anchored not stored refs pending

A stringent upper limit on the direct 3$\alpha$ decay of the Hoyle State in $^{12}$C

D. Schweitzer, H. O. U. Fynbo, M. Freer, M. Gai, M. W. Ahmed, R. Smith, S. R. Stern

arxiv:2001.07223 v1 · 2020-01-20 · nucl-ex · nucl-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P7NUPCMM3ASVSHJVMFJ2WSGRUY}

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	2026-07-05T00:43:46.821693Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7fdb47898cd825591d356153ab48d1a613b4ef4c7957da1fabcaafdde7ead449

Aliases

arxiv: 2001.07223 · arxiv_version: 2001.07223v1 · doi: 10.48550/arxiv.2001.07223 · pith_short_12: P7NUPCMM3ASV · pith_short_16: P7NUPCMM3ASVSHJV · pith_short_8: P7NUPCMM

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/P7NUPCMM3ASVSHJVMFJ2WSGRUY \
  | 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: 7fdb47898cd825591d356153ab48d1a613b4ef4c7957da1fabcaafdde7ead449

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d60927809fbb2e770e814e90fc968bad6fe9f7f7f2ae33142ec9a6105f57145",
    "cross_cats_sorted": [
      "nucl-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nucl-ex",
    "submitted_at": "2020-01-20T19:12:39Z",
    "title_canon_sha256": "33a223e33f0204728edf4de30cc873e3ba99f526a3f9e8453b993d3775cb55bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.07223",
    "kind": "arxiv",
    "version": 1
  }
}