Pith Number

pith:UEQPJZ7G

pith:2009:UEQPJZ7GCDL3F7L4UIAZXI4JVO

not attested not anchored not stored refs pending

On the cross section ratio sigma_n/sigma_p in eta photoproduction

K. Nakayama, M. D\"oring

arxiv:0909.3538 v2 · 2009-09-18 · 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{UEQPJZ7GCDL3F7L4UIAZXI4JVO}

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.

Cited by

1 paper in Pith

Pentaquarks and Maxim V. Polyakov

Receipt and verification

First computed	2026-07-04T17:19:32.887898Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a120f4e7e610d7b2fd7ca2019ba389abaf05a8aa476f7170e21a52f88db72483

Aliases

arxiv: 0909.3538 · arxiv_version: 0909.3538v2 · doi: 10.48550/arxiv.0909.3538 · pith_short_12: UEQPJZ7GCDL3 · pith_short_16: UEQPJZ7GCDL3F7L4 · pith_short_8: UEQPJZ7G

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/UEQPJZ7GCDL3F7L4UIAZXI4JVO \
  | 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: a120f4e7e610d7b2fd7ca2019ba389abaf05a8aa476f7170e21a52f88db72483

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e62a0e0336991c64a36ae863dfe942b8b8f1537f981fe2fede5e49514d718ef7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nucl-th",
    "submitted_at": "2009-09-18T22:05:47Z",
    "title_canon_sha256": "3dfb2fc16b8d3f32e536701248b27140a3529463f194c0028db968ccf212dd35"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.3538",
    "kind": "arxiv",
    "version": 2
  }
}