Pith Number

pith:L5QNDRUG

pith:1999:L5QNDRUGUPHMTXFECKREW54X3M

not attested not anchored not stored refs pending

First Measurement of the He3+He3-->He4+2p Cross Section down to the Lower Edge of the Solar Gamow Peak

A. D'Alessandro, A. D'Onofrio, A. Fubini, A. Guglielmetti, C. Broggini, C. Gustavino, C. Rolfs, F. Schuemann, F. Strieder, F. Terrasi, G. Gervino, G. Imbriani, H.P. Trautvetter, L. Campajola, L. Gialanella, M. Dessalvi, M. Junker, M. Romano, P. Corvisiero, P. Prati, S. Zavatarelli, The LUNA Collaboration: R. Bonetti, U. Greife, V. Roca

arxiv:nucl-ex/9902004 v1 · 1999-02-10 · 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{L5QNDRUGUPHMTXFECKREW54X3M}

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	2026-07-04T16:15:15.948273Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f60d1c686a3cec9dca412a24b7797db3581f230123b24afb2103f6bac0f24d5

Aliases

arxiv: nucl-ex/9902004 · arxiv_version: nucl-ex/9902004v1 · doi: 10.48550/arxiv.nucl-ex/9902004 · pith_short_12: L5QNDRUGUPHM · pith_short_16: L5QNDRUGUPHMTXFE · pith_short_8: L5QNDRUG

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/L5QNDRUGUPHMTXFECKREW54X3M \
  | 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: 5f60d1c686a3cec9dca412a24b7797db3581f230123b24afb2103f6bac0f24d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc4dd03c63c09c13f752af988e858535c8753a4bfc9163ca436914e215ff7bb1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "nucl-ex",
    "submitted_at": "1999-02-10T16:27:05Z",
    "title_canon_sha256": "07167527ec2ac40327ae9c17cbb8fa9a8c07198f4bdcf9648e4ebc6545470bd3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "nucl-ex/9902004",
    "kind": "arxiv",
    "version": 1
  }
}