Pith Number

pith:E4LWXBAW

pith:2009:E4LWXBAWOPCVPT66NHMMYOUDJY

not attested not anchored not stored refs pending

Some Paradoxes in Special Relativity

Ying-Qiu Gu

arxiv:0902.2032 v2 · 2009-02-12 · 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{E4LWXBAWOPCVPT66NHMMYOUDJY}

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	2026-05-18T04:25:11.612266Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27176b841673c557cfde69d8cc3a834e23d3be72a30a5600fb57b21f52ae31d1

Aliases

arxiv: 0902.2032 · arxiv_version: 0902.2032v2 · doi: 10.48550/arxiv.0902.2032 · pith_short_12: E4LWXBAWOPCV · pith_short_16: E4LWXBAWOPCVPT66 · pith_short_8: E4LWXBAW

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/E4LWXBAWOPCVPT66NHMMYOUDJY \
  | 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: 27176b841673c557cfde69d8cc3a834e23d3be72a30a5600fb57b21f52ae31d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5991348fe50ad605a8e047d02f340c9046268bcc7fbffb9c407e6ddb90977dbf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2009-02-12T08:31:38Z",
    "title_canon_sha256": "01e02ba8e2100f62000fbf196ff772e4d7e372c064fca806494dbd0148d56bb9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.2032",
    "kind": "arxiv",
    "version": 2
  }
}