Pith Number

pith:QODGEZW6

pith:2009:QODGEZW6JSWKECXD3FZNPVV7LP

not attested not anchored not stored refs pending

Knaster's problem for almost $(Z_p)^k$-orbits

A.Yu. Volovikov, R.N. Karasev

arxiv:0905.2047 v1 · 2009-05-13 · 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{QODGEZW6JSWKECXD3FZNPVV7LP}

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	2026-05-18T04:18:53.414720Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83866266de4caca20ae3d972d7d6bf5bf1a0bbe516236cd3d8b3ddbf33d151fc

Aliases

arxiv: 0905.2047 · arxiv_version: 0905.2047v1 · doi: 10.48550/arxiv.0905.2047 · pith_short_12: QODGEZW6JSWK · pith_short_16: QODGEZW6JSWKECXD · pith_short_8: QODGEZW6

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/QODGEZW6JSWKECXD3FZNPVV7LP \
  | 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: 83866266de4caca20ae3d972d7d6bf5bf1a0bbe516236cd3d8b3ddbf33d151fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c86c99c4915e7167c0a131169a1c083bf64d2cce7691eb7c21cdbfbf08eab0e7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2009-05-13T09:42:10Z",
    "title_canon_sha256": "26ca0d68ddecb7c2ff1583751c827e36e4efa3f52ba1c0bf42cf6bcdf408e26b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.2047",
    "kind": "arxiv",
    "version": 1
  }
}