Pith Number

pith:REWRD5HL

pith:2010:REWRD5HL2MM3ZDS7DKQS6GEVOU

not attested not anchored not stored refs pending

Cantor versus Cantor

Antonio Leon

arxiv:1001.2874 v4 · 2010-01-17 · math.GM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{REWRD5HL2MM3ZDS7DKQS6GEVOU}

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	2026-05-18T04:03:56.035661Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

892d11f4ebd319bc8e5f1aa12f18957522ab6bb3bbb4e0e8c52226e8682d51b8

Aliases

arxiv: 1001.2874 · arxiv_version: 1001.2874v4 · doi: 10.48550/arxiv.1001.2874 · pith_short_12: REWRD5HL2MM3 · pith_short_16: REWRD5HL2MM3ZDS7 · pith_short_8: REWRD5HL

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/REWRD5HL2MM3ZDS7DKQS6GEVOU \
  | 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: 892d11f4ebd319bc8e5f1aa12f18957522ab6bb3bbb4e0e8c52226e8682d51b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8e51c4ca965cd17192ec48bf22e0a134ad69a13dccc2268880e63ac76b7cc99",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GM",
    "submitted_at": "2010-01-17T06:52:45Z",
    "title_canon_sha256": "e3a570938fa10ed420d911045272edb44ed6bdc3b5d78395496c314dc611dd74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.2874",
    "kind": "arxiv",
    "version": 4
  }
}