Pith Number

pith:STFEF7YG

pith:1997:STFEF7YGHMRHPPGJW2JVZ22QFS

not attested not anchored not stored refs pending

Two-Photon Physics at RHIC: Separating Signals from Backgrounds

Joakim Nystrand, Spencer Klein

arxiv:hep-ex/9711021 v1 · 1997-11-27 · 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{STFEF7YGHMRHPPGJW2JVZ22QFS}

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	2026-05-18T02:37:20.847677Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94ca42ff063b2277bcc9b6935ceb502ca6b6be5298ef4d5d84bd4e1481fdd1bb

Aliases

arxiv: hep-ex/9711021 · arxiv_version: hep-ex/9711021v1 · doi: 10.48550/arxiv.hep-ex/9711021 · pith_short_12: STFEF7YGHMRH · pith_short_16: STFEF7YGHMRHPPGJ · pith_short_8: STFEF7YG

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/STFEF7YGHMRHPPGJW2JVZ22QFS \
  | 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: 94ca42ff063b2277bcc9b6935ceb502ca6b6be5298ef4d5d84bd4e1481fdd1bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5833eb9ddd810529c211fa5f2360f6a1219b64e0db29c513837bdbabce59474f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-ex",
    "submitted_at": "1997-11-27T00:17:36Z",
    "title_canon_sha256": "6efb769acf031f1c1094f65bac8ccd986a70f8827b1a0e5a330dcc2528da0241"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-ex/9711021",
    "kind": "arxiv",
    "version": 1
  }
}