Pith Number

pith:5UXWZY4G

pith:1998:5UXWZY4G6AS3WXIGYUGPEQVYJS

not attested not anchored not stored refs pending

A note on light velocity anisotropy

Bruno Preziosi (Dipartimento di Scienze Fisiche - Universita' Federico II di Napoli, INFM)

arxiv:gr-qc/9811008 v1 · 1998-11-03 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5UXWZY4G6AS3WXIGYUGPEQVYJS}

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	2026-05-18T01:39:18.302558Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed2f6ce386f025bb5d06c50cf242b84ca75a9a666f03bbab1ebdd7824d40fa0a

Aliases

arxiv: gr-qc/9811008 · arxiv_version: gr-qc/9811008v1 · doi: 10.48550/arxiv.gr-qc/9811008 · pith_short_12: 5UXWZY4G6AS3 · pith_short_16: 5UXWZY4G6AS3WXIG · pith_short_8: 5UXWZY4G

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/5UXWZY4G6AS3WXIGYUGPEQVYJS \
  | 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: ed2f6ce386f025bb5d06c50cf242b84ca75a9a666f03bbab1ebdd7824d40fa0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff6aac02a8acb6a1080001d5badc5cf7eb97b6af12dbeba9b4b011be101b96d7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1998-11-03T11:15:53Z",
    "title_canon_sha256": "156cac959c8d174e09fc4b383a2beb43592388bb22d94d56f1e5a0bd754745b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9811008",
    "kind": "arxiv",
    "version": 1
  }
}