Pith Number

pith:OHXPVYKH

pith:2017:OHXPVYKHHUY6OVIUPQHSBFTUSD

not attested not anchored not stored refs pending

Isomorphisms of $AC(\sigma)$ spaces for countable sets

Ian Doust, Shaymaa Al-shakarchi

arxiv:1710.09073 v2 · 2017-10-25 · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OHXPVYKHHUY6OVIUPQHSBFTUSD}

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	2026-05-18T00:02:45.504249Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71eefae1473d31e755147c0f20967490c682c186da1a1d7875ac6159edc651e1

Aliases

arxiv: 1710.09073 · arxiv_version: 1710.09073v2 · doi: 10.48550/arxiv.1710.09073 · pith_short_12: OHXPVYKHHUY6 · pith_short_16: OHXPVYKHHUY6OVIU · pith_short_8: OHXPVYKH

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/OHXPVYKHHUY6OVIUPQHSBFTUSD \
  | 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: 71eefae1473d31e755147c0f20967490c682c186da1a1d7875ac6159edc651e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e97b735d86a05cfd77ce464e41989d01984686edd971f8b2836b58e0232743a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2017-10-25T04:42:49Z",
    "title_canon_sha256": "7f43d626e0faa20fc452399eed6d4cd2043b8baaeedb18428532257afd2774d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.09073",
    "kind": "arxiv",
    "version": 2
  }
}