Pith Number

pith:LJFCFKPI

pith:2007:LJFCFKPI5KC2F5OPLWN7VYFVNC

not attested not anchored not stored refs pending

Particle physics with a laser-driven positronium atom

Carsten M\"uller, Christoph H. Keitel, Karen Z. Hatsagortsyan

arxiv:0705.0917 v2 · 2007-05-07 · 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{LJFCFKPI5KC2F5OPLWN7VYFVNC}

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	2026-07-04T15:24:55.867397Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a4a22a9e8ea85a2f5cf5d9bfae0b568b0dd7196e01e1b8072be9204ac3e393b

Aliases

arxiv: 0705.0917 · arxiv_version: 0705.0917v2 · doi: 10.48550/arxiv.0705.0917 · pith_short_12: LJFCFKPI5KC2 · pith_short_16: LJFCFKPI5KC2F5OP · pith_short_8: LJFCFKPI

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/LJFCFKPI5KC2F5OPLWN7VYFVNC \
  | 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: 5a4a22a9e8ea85a2f5cf5d9bfae0b568b0dd7196e01e1b8072be9204ac3e393b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0454b25a0b2a935f3057c76b2528938e2c92e18c6ce0bd66aaf4776a152948ba",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-ph",
    "submitted_at": "2007-05-07T15:03:13Z",
    "title_canon_sha256": "04b0d1dab0f294a4bbea0a1852267f861d398d04e69d7e00f3b31613b66b3042"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0705.0917",
    "kind": "arxiv",
    "version": 2
  }
}