Pith Number

pith:JCGGO5YQ

pith:2017:JCGGO5YQ4522SD2FPFU3WXQFFX

not attested not anchored not stored refs pending

Locally free actions of groupoids and proper topological correspondences

Rohit Dilip Holkar

arxiv:1709.08938 v1 · 2017-09-26 · math.OA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JCGGO5YQ4522SD2FPFU3WXQFFX}

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	2026-05-18T00:34:21.535204Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

488c677710e775a90f457969bb5e052de9ba50774d40379dd380acdf2f1fb514

Aliases

arxiv: 1709.08938 · arxiv_version: 1709.08938v1 · doi: 10.48550/arxiv.1709.08938 · pith_short_12: JCGGO5YQ4522 · pith_short_16: JCGGO5YQ4522SD2F · pith_short_8: JCGGO5YQ

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/JCGGO5YQ4522SD2FPFU3WXQFFX \
  | 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: 488c677710e775a90f457969bb5e052de9ba50774d40379dd380acdf2f1fb514

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6cbfb427694aa7039c1b448ba41b5600c7614123690dfbd3c6865780495f1009",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OA",
    "submitted_at": "2017-09-26T10:55:57Z",
    "title_canon_sha256": "67ec300a6275e90d7112c0a59fe96985cba26489d810be6425f4d7c2fcf39dd7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.08938",
    "kind": "arxiv",
    "version": 1
  }
}