Pith Number

pith:DB4DJRY3

pith:1999:DB4DJRY3X7ALITEPBKBDNS5QDY

not attested not anchored not stored refs pending

Optics of Nonuniformly Moving Media

P. Piwnicki, U. Leonhardt

arxiv:physics/9906038 v3 · 1999-06-22 · physics.optics

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DB4DJRY3X7ALITEPBKBDNS5QDY}

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	2026-07-04T16:15:35.708568Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

187834c71bbfc0b44c8f0a8236cbb01e092d6af9cfb2a4b0703acad2912b9845

Aliases

arxiv: physics/9906038 · arxiv_version: physics/9906038v3 · doi: 10.48550/arxiv.physics/9906038 · pith_short_12: DB4DJRY3X7AL · pith_short_16: DB4DJRY3X7ALITEP · pith_short_8: DB4DJRY3

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/DB4DJRY3X7ALITEPBKBDNS5QDY \
  | 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: 187834c71bbfc0b44c8f0a8236cbb01e092d6af9cfb2a4b0703acad2912b9845

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2982d36395bac477b0256672e239e519e83c84b9834ba2fab2a7ef30401a8ba",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "physics.optics",
    "submitted_at": "1999-06-22T13:12:08Z",
    "title_canon_sha256": "7f4cb00215a0fa95fba902c831cd276da94a989ea9d09b903bab31a24b014321"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/9906038",
    "kind": "arxiv",
    "version": 3
  }
}