Pith Number

pith:R2IDSWH4

pith:2007:R2IDSWH4GPXGSGP6YSHTYYQKNQ

not attested not anchored not stored refs pending

Comment on "How the potentials in different gauges yield the same retarded electric and magnetic fields," by J. A. Heras [Am. J. Phys. 75, 176 (2007)]

V. Hnizdo

arxiv:physics/0703254 v1 · 2007-03-28 · physics.class-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{R2IDSWH4GPXGSGP6YSHTYYQKNQ}

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.

Cited by

1 paper in Pith

Direct, analytic solution for the electromagnetic vector potential in any gauge

Receipt and verification

First computed	2026-07-04T15:00:34.011631Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e903958fc33ee6919fec48f3c620a6c338bc7b6cc0752c5fdb98cc52a9e541f

Aliases

arxiv: physics/0703254 · arxiv_version: physics/0703254v1 · doi: 10.48550/arxiv.physics/0703254 · pith_short_12: R2IDSWH4GPXG · pith_short_16: R2IDSWH4GPXGSGP6 · pith_short_8: R2IDSWH4

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/R2IDSWH4GPXGSGP6YSHTYYQKNQ \
  | 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: 8e903958fc33ee6919fec48f3c620a6c338bc7b6cc0752c5fdb98cc52a9e541f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e876d91011a253a5eb2f4eea1c2f15f33be60c4c7737704802aba987fb2e517",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2007-03-28T13:32:47Z",
    "title_canon_sha256": "ce9a8b1470fe779f67a846792acd38965288abf637f7c574a9f53df663923107"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0703254",
    "kind": "arxiv",
    "version": 1
  }
}