Pith Number

pith:PN65HKS2

pith:2010:PN65HKS2SSIDI7WHMSVBCSOB5R

not attested not anchored not stored refs pending

QED and ortho-para- positronium mass difference

G.V. Efimov

arxiv:1010.0144 v1 · 2010-10-01 · hep-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PN65HKS2SSIDI7WHMSVBCSOB5R}

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	2026-05-18T04:40:00.202210Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b7dd3aa5a9490347ec764aa1149c1ec62de6807b9a2ebe44a8eb08ca6d7efc6

Aliases

arxiv: 1010.0144 · arxiv_version: 1010.0144v1 · doi: 10.48550/arxiv.1010.0144 · pith_short_12: PN65HKS2SSID · pith_short_16: PN65HKS2SSIDI7WH · pith_short_8: PN65HKS2

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/PN65HKS2SSIDI7WHMSVBCSOB5R \
  | 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: 7b7dd3aa5a9490347ec764aa1149c1ec62de6807b9a2ebe44a8eb08ca6d7efc6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df59c829bc52fbb5acb5cc88feb3b06e39499d8d3b4bf6dbf10fb184940ef64c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2010-10-01T12:35:20Z",
    "title_canon_sha256": "f7c94e47270aba1f10f25c8c7a2271f7e4bb721c7d428b9467517bd8d3e707c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.0144",
    "kind": "arxiv",
    "version": 1
  }
}