Pith Number

pith:FMIBKQTB

pith:2007:FMIBKQTBRK6BGHX4WFUKUT2Z4B

not attested not anchored not stored refs pending

Maxwell equations in Riemannian space-time, geometry effect on material equations in media

E.M. Bychkouskaya, George J. Spix, N.G. Tokarevskaya, V.M. Red'kov

arxiv:0709.2415 v1 · 2007-09-15 · physics.class-ph · physics.gen-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{FMIBKQTBRK6BGHX4WFUKUT2Z4B}

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	2026-05-18T04:14:15.425675Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b101542618abc131efcb168aa4f59e07b7e190380aeb29ae02f8703d465e739

Aliases

arxiv: 0709.2415 · arxiv_version: 0709.2415v1 · doi: 10.48550/arxiv.0709.2415 · pith_short_12: FMIBKQTBRK6B · pith_short_16: FMIBKQTBRK6BGHX4 · pith_short_8: FMIBKQTB

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/FMIBKQTBRK6BGHX4WFUKUT2Z4B \
  | 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: 2b101542618abc131efcb168aa4f59e07b7e190380aeb29ae02f8703d465e739

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c37479fe6231409fdbbb2f384364d8ac0bc5c62abc35a8fb7ec9b6d1cdeb5e10",
    "cross_cats_sorted": [
      "physics.gen-ph"
    ],
    "license": "",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2007-09-15T09:33:17Z",
    "title_canon_sha256": "a7cd54579a5a9d5bc53e520725d20f2ec793d2ecfc4dcdbe0a6fbe64fcb3886d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0709.2415",
    "kind": "arxiv",
    "version": 1
  }
}