Pith Number

pith:WFZPUTOZ

pith:2000:WFZPUTOZ7GN3UIW2XKOCDVQQJS

not attested not anchored not stored refs pending

Measurement of Direct Photon Emission in K^+ -> pi^+ pi^0 gamma Decay

E787 collaboration

arxiv:hep-ex/0007021 v1 · 2000-07-12 · 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{WFZPUTOZ7GN3UIW2XKOCDVQQJS}

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	2026-05-18T03:47:41.083126Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b172fa4dd9f99bba22daba9c21d6104c917844b74caed319f5928cc42723a4ca

Aliases

arxiv: hep-ex/0007021 · arxiv_version: hep-ex/0007021v1 · doi: 10.48550/arxiv.hep-ex/0007021 · pith_short_12: WFZPUTOZ7GN3 · pith_short_16: WFZPUTOZ7GN3UIW2 · pith_short_8: WFZPUTOZ

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/WFZPUTOZ7GN3UIW2XKOCDVQQJS \
  | 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: b172fa4dd9f99bba22daba9c21d6104c917844b74caed319f5928cc42723a4ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "49335068a0ec1ec2eb97768b05ad7f3d1293a9b18b5d57390e9d1ae6f000ff37",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-ex",
    "submitted_at": "2000-07-12T02:40:05Z",
    "title_canon_sha256": "4fcba7f5cf6d65577269ffcd6c85eecace63c3b031ac719e7795f7de8f8b0947"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-ex/0007021",
    "kind": "arxiv",
    "version": 1
  }
}