pith. sign in
Pith Number

pith:OBYCITNG

pith:1997:OBYCITNGLOUBCYNO6RAI5USYBC
not attested not anchored not stored refs pending

Some O(\alpha^2) Annihilation Type Contributions to the Orthopositronium Width

E. Kuraev, V. Antonelli, V. Ivanchenko, V. Laliena

arxiv:hep-ph/9706523 v2 · 1997-06-27 · hep-ph

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{OBYCITNGLOUBCYNO6RAI5USYBC}

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 2026-05-18T04:13:25.288126Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

7070244da65ba81161aef4408ed258089b88d2c8fcf19b4c96c5d2445dd721ab

Aliases

arxiv: hep-ph/9706523 · arxiv_version: hep-ph/9706523v2 · doi: 10.48550/arxiv.hep-ph/9706523 · pith_short_12: OBYCITNGLOUB · pith_short_16: OBYCITNGLOUBCYNO · pith_short_8: OBYCITNG
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/OBYCITNGLOUBCYNO6RAI5USYBC \
  | 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: 7070244da65ba81161aef4408ed258089b88d2c8fcf19b4c96c5d2445dd721ab
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "7a5b73976ee6cfdf964a6b9c9b7228eb476f1f90c723f2cea68f75cb2a49a46e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-ph",
    "submitted_at": "1997-06-27T16:15:59Z",
    "title_canon_sha256": "a3daf9c90bc35ee10bd7bdf9b4d4beba7a50c00cd85f7e71cbd073e80f79fd75"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-ph/9706523",
    "kind": "arxiv",
    "version": 2
  }
}