Pith Number

pith:VTHSBZ2K

pith:2005:VTHSBZ2K5HVPHEMXVHPI6OG4OT

not attested not anchored not stored refs pending

Two-Photon Exchange and Electromagnetic Proton Form Factors

Egle Tomasi-Gustafsson

arxiv:nucl-th/0501043 v1 · 2005-01-18 · nucl-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VTHSBZ2K5HVPHEMXVHPI6OG4OT}

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	2026-05-18T01:38:13.379033Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

accf20e74ae9eaf39197a9de8f38dc74e01f452371b50eaf8b04e1cb8ce71798

Aliases

arxiv: nucl-th/0501043 · arxiv_version: nucl-th/0501043v1 · doi: 10.48550/arxiv.nucl-th/0501043 · pith_short_12: VTHSBZ2K5HVP · pith_short_16: VTHSBZ2K5HVPHEMX · pith_short_8: VTHSBZ2K

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/VTHSBZ2K5HVPHEMXVHPI6OG4OT \
  | 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: accf20e74ae9eaf39197a9de8f38dc74e01f452371b50eaf8b04e1cb8ce71798

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "713999f4c5b71e7aed17208dafb110b1c6f073fee0e79051dc29fffdbd097b39",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "nucl-th",
    "submitted_at": "2005-01-18T14:12:58Z",
    "title_canon_sha256": "0ec4256067e3db04347f67be4608e1d70f74036b915215a9ffa3067b991b1eec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "nucl-th/0501043",
    "kind": "arxiv",
    "version": 1
  }
}