Pith Number

pith:CU4SRSSN

pith:2017:CU4SRSSN4RMU72JEY6O5NW5D3A

not attested not anchored not stored refs pending

On the mathematical and foundational significance of the uncountable

Dag Normann, Sam Sanders

arxiv:1711.08939 v7 · 2017-11-24 · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CU4SRSSN4RMU72JEY6O5NW5D3A}

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	2026-05-17T23:51:39.800690Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

153928ca4de4594fe924c79dd6dba3d830de83ed22efc686d7df0e71a576757a

Aliases

arxiv: 1711.08939 · arxiv_version: 1711.08939v7 · doi: 10.48550/arxiv.1711.08939 · pith_short_12: CU4SRSSN4RMU · pith_short_16: CU4SRSSN4RMU72JE · pith_short_8: CU4SRSSN

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/CU4SRSSN4RMU72JEY6O5NW5D3A \
  | 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: 153928ca4de4594fe924c79dd6dba3d830de83ed22efc686d7df0e71a576757a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5fe7326a49d837bd15fcfc101597a970c641f7426348018668ded1ad28d33698",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2017-11-24T12:21:50Z",
    "title_canon_sha256": "8a476d01a14a754ac5a1db645201b53153959e40bbf1f8f439275ac156af2fdc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.08939",
    "kind": "arxiv",
    "version": 7
  }
}