Pith Number

pith:NWWRVUS5

pith:2011:NWWRVUS5726LTRTLNBNVCIHSHG

not attested not anchored not stored refs pending

Generalizing Topology via Chu Spaces

Apostolos Syropoulos, Basil K. Papadopoulos

arxiv:1101.2999 v1 · 2011-01-15 · cs.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{NWWRVUS5726LTRTLNBNVCIHSHG}

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	2026-05-18T04:31:30.603764Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6dad1ad25dfebcb9c66b685b5120f23986e9c711df58dd343af72e186da8bb21

Aliases

arxiv: 1101.2999 · arxiv_version: 1101.2999v1 · doi: 10.48550/arxiv.1101.2999 · pith_short_12: NWWRVUS5726L · pith_short_16: NWWRVUS5726LTRTL · pith_short_8: NWWRVUS5

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/NWWRVUS5726LTRTLNBNVCIHSHG \
  | 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: 6dad1ad25dfebcb9c66b685b5120f23986e9c711df58dd343af72e186da8bb21

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d269a171e52a657939c163a3956da50cf960395ad8a30f21da679879ed9e69f8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2011-01-15T16:09:06Z",
    "title_canon_sha256": "67e939b3ecb95f02fc9631b76bf6ba712e66e8566cc023c3b777d5d78347c910"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.2999",
    "kind": "arxiv",
    "version": 1
  }
}