Pith Number

pith:HB3EKHF2

pith:2016:HB3EKHF2SKOJH3I32YQHTIGWOQ

not attested not anchored not stored refs pending

Manifolds with the fixed point property and their squares

Fang Sun, Slawomir Kwasik

arxiv:1609.05802 v2 · 2016-09-19 · 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{HB3EKHF2SKOJH3I32YQHTIGWOQ}

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	2026-05-18T01:03:37.447914Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3876451cba929c93ed1bd62079a0d6740ff658dabf58a3af36d2260f1136c00f

Aliases

arxiv: 1609.05802 · arxiv_version: 1609.05802v2 · doi: 10.48550/arxiv.1609.05802 · pith_short_12: HB3EKHF2SKOJ · pith_short_16: HB3EKHF2SKOJH3I3 · pith_short_8: HB3EKHF2

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/HB3EKHF2SKOJH3I32YQHTIGWOQ \
  | 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: 3876451cba929c93ed1bd62079a0d6740ff658dabf58a3af36d2260f1136c00f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ccbf632acfc5619d1c78378cc7091aeef6ff075ed6a33e0f87d66e7f822a885e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2016-09-19T15:55:32Z",
    "title_canon_sha256": "d9db72c0f45daf67e255735693b6da1aaff076ffaad0ec3679aedc28ce5eda43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.05802",
    "kind": "arxiv",
    "version": 2
  }
}