Pith Number

pith:2V2I6LNK

pith:2018:2V2I6LNKIL33D2ZDZ3A2ARIR6L

not attested not anchored not stored refs pending

The Omega spectrum for Pengelley's BoP

W. Stephen Wilson

arxiv:1807.03738 v3 · 2018-07-10 · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2V2I6LNKIL33D2ZDZ3A2ARIR6L}

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	2026-05-17T23:46:32.046799Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5748f2daa42f7b1eb23cec1a04511f2eb2cff6a112dd0dc6dc53d916c97feb6

Aliases

arxiv: 1807.03738 · arxiv_version: 1807.03738v3 · doi: 10.48550/arxiv.1807.03738 · pith_short_12: 2V2I6LNKIL33 · pith_short_16: 2V2I6LNKIL33D2ZD · pith_short_8: 2V2I6LNK

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/2V2I6LNKIL33D2ZDZ3A2ARIR6L \
  | 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: d5748f2daa42f7b1eb23cec1a04511f2eb2cff6a112dd0dc6dc53d916c97feb6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c45c96e118271a9d1a464d021fd95a99553f47c35658e5c6e81877ed8aedfcf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2018-07-10T16:24:24Z",
    "title_canon_sha256": "41a37f9327897fddbeaa0fc5f2949dc7b1d6749878ed256a63cc0a92312c51d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.03738",
    "kind": "arxiv",
    "version": 3
  }
}