Pith Number

pith:PT77YCHA

pith:2004:PT77YCHAA55DNDU5PCBG2M3DQ2

not attested not anchored not stored refs pending

Neutral pion photoproduction off protons in the energy range 0.3 GeV < E(gamma) < 3 GeV

Harald van Pee (for the CB-ELSA Collaboration), Olivia Bartholomy, Volker Crede

arxiv:hep-ex/0407022 v2 · 2004-07-12 · hep-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{PT77YCHAA55DNDU5PCBG2M3DQ2}

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

Theory of resonances

Receipt and verification

First computed	2026-07-04T23:55:50.643350Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7cfffc08e0077a368e9d78826d336386920f4719a597b32cf887f85eafebae8a

Aliases

arxiv: hep-ex/0407022 · arxiv_version: hep-ex/0407022v2 · doi: 10.48550/arxiv.hep-ex/0407022 · pith_short_12: PT77YCHAA55D · pith_short_16: PT77YCHAA55DNDU5 · pith_short_8: PT77YCHA

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/PT77YCHAA55DNDU5PCBG2M3DQ2 \
  | 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: 7cfffc08e0077a368e9d78826d336386920f4719a597b32cf887f85eafebae8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1b50ff2e9684f82d416fb6b4bbb36ba93b6afe8bf87ddd40adde057343f6783",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-ex",
    "submitted_at": "2004-07-12T15:03:56Z",
    "title_canon_sha256": "7362655aa15bde1c85d86470a101f3c6fbb4b2d4ee650f1dbf0280df6fddb0a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-ex/0407022",
    "kind": "arxiv",
    "version": 2
  }
}