Pith Number

pith:6V7XJZU2

pith:2010:6V7XJZU2JG4WXYMBZ5UVNZUHTO

not attested not anchored not stored refs pending

The c equivalence principle and the correct form of writing Maxwell's equations

Jose A. Heras

arxiv:1012.1067 v1 · 2010-12-06 · 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{6V7XJZU2JG4WXYMBZ5UVNZUHTO}

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	2026-05-18T04:34:01.883968Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f57f74e69a49b96be181cf6956e6879ba0b333725bbc62c85cc200ab080784e7

Aliases

arxiv: 1012.1067 · arxiv_version: 1012.1067v1 · doi: 10.48550/arxiv.1012.1067 · pith_short_12: 6V7XJZU2JG4W · pith_short_16: 6V7XJZU2JG4WXYMB · pith_short_8: 6V7XJZU2

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/6V7XJZU2JG4WXYMBZ5UVNZUHTO \
  | 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: f57f74e69a49b96be181cf6956e6879ba0b333725bbc62c85cc200ab080784e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "46fb49beb5c653e6ba716d7a9497daaca1a18cac63831592e2f6c8a25ff5fd2b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2010-12-06T02:23:56Z",
    "title_canon_sha256": "b4768424f9c4bfb5042d20280ee845e0ffae550af07fe0cc2306ab4b2ac7b485"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.1067",
    "kind": "arxiv",
    "version": 1
  }
}