Pith Number

pith:BVGVE4NE

pith:2009:BVGVE4NEORI7CUWRKM2N25SYD4

not attested not anchored not stored refs pending

Coulomb interaction revised in the presence of material with negative permittivity

A. A. Rangelov, N. Karchev

arxiv:0910.5307 v3 · 2009-10-28 · 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{BVGVE4NEORI7CUWRKM2N25SYD4}

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	2026-05-18T04:34:46.267778Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d4d5271a47451f152d15334dd76581f2df897f833242558650bdad239f85eaa

Aliases

arxiv: 0910.5307 · arxiv_version: 0910.5307v3 · doi: 10.48550/arxiv.0910.5307 · pith_short_12: BVGVE4NEORI7 · pith_short_16: BVGVE4NEORI7CUWR · pith_short_8: BVGVE4NE

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/BVGVE4NEORI7CUWRKM2N25SYD4 \
  | 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: 0d4d5271a47451f152d15334dd76581f2df897f833242558650bdad239f85eaa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6bd62d0c6b599442eb69941ecde3ab7238fb00e9f833604dee0aaa209344c63c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2009-10-28T08:31:08Z",
    "title_canon_sha256": "4187e4224855466dc38de0ff60cd5fdb8f8fe761a87ea0908db1efc790893e7d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.5307",
    "kind": "arxiv",
    "version": 3
  }
}