Pith Number

pith:6DAF6C26

pith:2015:6DAF6C263OCJCBCKB4WSN2WPMW

not attested not anchored not stored refs pending

Noncommutative Borsuk-Ulam-type conjectures

Ludwik Dabrowski, Paul F. Baum, Piotr M. Hajac

arxiv:1502.05756 v2 · 2015-02-20 · math.QA · math-ph · math.GN · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6DAF6C263OCJCBCKB4WSN2WPMW}

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	2026-05-18T00:58:55.629498Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f0c05f0b5edb8491044a0f2d26eacf658370da05bebe3ce4b43d7d53a3ddc43b

Aliases

arxiv: 1502.05756 · arxiv_version: 1502.05756v2 · doi: 10.48550/arxiv.1502.05756 · pith_short_12: 6DAF6C263OCJ · pith_short_16: 6DAF6C263OCJCBCK · pith_short_8: 6DAF6C26

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/6DAF6C263OCJCBCKB4WSN2WPMW \
  | 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: f0c05f0b5edb8491044a0f2d26eacf658370da05bebe3ce4b43d7d53a3ddc43b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9aeea48cf5e0f7a72f0fb2f6e27c25fa8833ce458224c4d9493a58c73275f27f",
    "cross_cats_sorted": [
      "math-ph",
      "math.GN",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.QA",
    "submitted_at": "2015-02-20T00:46:53Z",
    "title_canon_sha256": "f3d44d73e7eb56effd6e31c2ef87d9277974e11f29fff5517a341f3a3cb93af3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.05756",
    "kind": "arxiv",
    "version": 2
  }
}