Pith Number

pith:BB5S5WEN

pith:2015:BB5S5WENBRVE3PXKL4M57B6JL4

not attested not anchored not stored refs pending

Sullivan minimal models of classifying spaces for non-formal spaces of small rank

Hirokazu Nishinobu, Toshihiro Yamaguchi

arxiv:1504.07002 v1 · 2015-04-27 · 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{BB5S5WENBRVE3PXKL4M57B6JL4}

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	2026-05-18T02:17:43.911559Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

087b2ed88d0c6a4dbeea5f19df87c95f260aa8c222e96be580527fd6022e6e1c

Aliases

arxiv: 1504.07002 · arxiv_version: 1504.07002v1 · doi: 10.48550/arxiv.1504.07002 · pith_short_12: BB5S5WENBRVE · pith_short_16: BB5S5WENBRVE3PXK · pith_short_8: BB5S5WEN

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/BB5S5WENBRVE3PXKL4M57B6JL4 \
  | 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: 087b2ed88d0c6a4dbeea5f19df87c95f260aa8c222e96be580527fd6022e6e1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "733f8ea98e181b92a52529590d7a8e041a0b92384afb40808f23ef1251a52f9b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2015-04-27T09:44:15Z",
    "title_canon_sha256": "2ebd6d170b9826187ced03cafe7fa329868e5f123864adfc930b1ad047783fd3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.07002",
    "kind": "arxiv",
    "version": 1
  }
}