Pith Number

pith:LAS5SSPA

pith:2015:LAS5SSPAATQWCQWHC6ZSFPW5CC

not attested not anchored not stored refs pending

The reals as rational Cauchy filters

Ittay Weiss

arxiv:1503.04348 v3 · 2015-03-14 · math.HO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LAS5SSPAATQWCQWHC6ZSFPW5CC}

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	2026-05-18T01:27:46.260381Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5825d949e004e16142c717b322bedd108766297b0088f9d288ad77ad3a232f21

Aliases

arxiv: 1503.04348 · arxiv_version: 1503.04348v3 · doi: 10.48550/arxiv.1503.04348 · pith_short_12: LAS5SSPAATQW · pith_short_16: LAS5SSPAATQWCQWH · pith_short_8: LAS5SSPA

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/LAS5SSPAATQWCQWHC6ZSFPW5CC \
  | 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: 5825d949e004e16142c717b322bedd108766297b0088f9d288ad77ad3a232f21

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "081f3584ec3c8ee52e0046ecc16fa4a0317b4c0b7f2a6d5a30fd85af3a187f6c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2015-03-14T21:17:28Z",
    "title_canon_sha256": "17f983e3dd63a6397d3ae78ed47e877fb715e8b94e3a94306f5c5f4d6e8b5e60"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.04348",
    "kind": "arxiv",
    "version": 3
  }
}