Pith Number

pith:DE5L6ZFB

pith:2013:DE5L6ZFBR737HXEFP7D7WCX5BO

not attested not anchored not stored refs pending

Velocity requirements for causality violation

Giovanni Modanese

arxiv:1304.5522 v3 · 2013-04-07 · 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{DE5L6ZFBR737HXEFP7D7WCX5BO}

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	2026-05-17T23:57:44.702724Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

193abf64a18ff7f3dc857fc7fb0afd0ba0fb6fb0d7f0a309b8aa8e8e440c347f

Aliases

arxiv: 1304.5522 · arxiv_version: 1304.5522v3 · doi: 10.48550/arxiv.1304.5522 · pith_short_12: DE5L6ZFBR737 · pith_short_16: DE5L6ZFBR737HXEF · pith_short_8: DE5L6ZFB

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/DE5L6ZFBR737HXEFP7D7WCX5BO \
  | 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: 193abf64a18ff7f3dc857fc7fb0afd0ba0fb6fb0d7f0a309b8aa8e8e440c347f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dacd5c1fcbd103a5a80666b2cb390c5d65a343c736cf058d920ff911d8735382",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2013-04-07T19:44:25Z",
    "title_canon_sha256": "fb38ce6142336ce26d70cc30f926466a9349c5fe5e77a15e3366c3591c2e7c28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.5522",
    "kind": "arxiv",
    "version": 3
  }
}