Pith Number

pith:PPCU3NI4

pith:2009:PPCU3NI4YHV2HF4NBPGLL6NTHY

not attested not anchored not stored refs pending

Geometrical simplification of the dipole-dipole interaction formula

Ladislav Kocbach, Suhail Lubbad

arxiv:0908.1548 v1 · 2009-08-11 · physics.ed-ph · 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{PPCU3NI4YHV2HF4NBPGLL6NTHY}

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	2026-05-18T02:12:35.509773Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7bc54db51cc1eba3978d0bccb5f9b33e2e2870d5a983977dd3f5759132f99d81

Aliases

arxiv: 0908.1548 · arxiv_version: 0908.1548v1 · doi: 10.48550/arxiv.0908.1548 · pith_short_12: PPCU3NI4YHV2 · pith_short_16: PPCU3NI4YHV2HF4N · pith_short_8: PPCU3NI4

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/PPCU3NI4YHV2HF4NBPGLL6NTHY \
  | 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: 7bc54db51cc1eba3978d0bccb5f9b33e2e2870d5a983977dd3f5759132f99d81

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7384e595088ece8a87361259da0d36837f5b0e60d218985d1f942e55c292932b",
    "cross_cats_sorted": [
      "physics.class-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2009-08-11T17:45:37Z",
    "title_canon_sha256": "b2578a10370f6b6e8a4d646d92441e95526acaea7f733e1a4d1bca64f5802642"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.1548",
    "kind": "arxiv",
    "version": 1
  }
}