Pith Number

pith:FOHMQJR5

pith:2015:FOHMQJR54Y2F32YZGVUVAP6UJJ

not attested not anchored not stored refs pending

Topology and convexity in the space of actions modulo weak equivalence

Peter Burton

arxiv:1501.04079 v2 · 2015-01-16 · math.DS · math.GR · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FOHMQJR54Y2F32YZGVUVAP6UJJ}

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	2026-05-18T01:23:24.570598Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b8ec8263de6345deb193569503fd44a6d070d1705b073049ceb3ad528089ab2

Aliases

arxiv: 1501.04079 · arxiv_version: 1501.04079v2 · doi: 10.48550/arxiv.1501.04079 · pith_short_12: FOHMQJR54Y2F · pith_short_16: FOHMQJR54Y2F32YZ · pith_short_8: FOHMQJR5

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/FOHMQJR54Y2F32YZGVUVAP6UJJ \
  | 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: 2b8ec8263de6345deb193569503fd44a6d070d1705b073049ceb3ad528089ab2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c76bbe66e810ba3cd592950e7d64e283008da30e7080c7375cdf073edcd599aa",
    "cross_cats_sorted": [
      "math.GR",
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2015-01-16T19:09:06Z",
    "title_canon_sha256": "cb6b73d6a65f85d155b38928aebbbd42cc3b4bfca1797ca44f64e866b5853e5f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.04079",
    "kind": "arxiv",
    "version": 2
  }
}