Pith Number

pith:YNOLBMVI

pith:1999:YNOLBMVIHTWXJOF7QPBDGS32TK

not attested not anchored not stored refs pending

Coherent \pi^\circ photoproduction from ^4He

A. Schmidt, B. Krusche, F. Rambo, F. Smend, F. Wissmann, H.-J. Arends, H. Str"oher, J. Ahrens, J. Weiss, M. Kotulla, M. Schumacher, M. Wolf, P. Achenbach, P. Jennewein, R. Beck, R. Leukel, R. Novotny, S.J. Hall, S.S. Kamalov, U. Siodlaczek, V. Hejny, V. Kuhr, V. Metag, V. Olmos de Leon

arxiv:nucl-ex/9907020 v1 · 1999-07-30 · 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{YNOLBMVIHTWXJOF7QPBDGS32TK}

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	2026-05-18T03:19:57.737553Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c35cb0b2a83ced74b8bf83c2334b7a9aacf20369481104994742ff32b8f136ce

Aliases

arxiv: nucl-ex/9907020 · arxiv_version: nucl-ex/9907020v1 · doi: 10.48550/arxiv.nucl-ex/9907020 · pith_short_12: YNOLBMVIHTWX · pith_short_16: YNOLBMVIHTWXJOF7 · pith_short_8: YNOLBMVI

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/YNOLBMVIHTWXJOF7QPBDGS32TK \
  | 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: c35cb0b2a83ced74b8bf83c2334b7a9aacf20369481104994742ff32b8f136ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd01c01fc914c59f1a69be37b61c20e93a10d08dbea0db374badafeac054de45",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "nucl-ex",
    "submitted_at": "1999-07-30T13:25:40Z",
    "title_canon_sha256": "ed291f172a490aad894f40c88e8f8ccf7ba581bff5664ed7882864d06e737052"
  },
  "schema_version": "1.0",
  "source": {
    "id": "nucl-ex/9907020",
    "kind": "arxiv",
    "version": 1
  }
}