Pith Number

pith:3PTGJTSK

pith:2017:3PTGJTSK7NLEPIL47TKNDBV5ZD

not attested not anchored not stored refs pending

Functoriality and uniformity in Hrushovski's groupoid-cover correspondence

Levon Haykazyan, Rahim Moosa

arxiv:1711.03531 v1 · 2017-11-09 · 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{3PTGJTSK7NLEPIL47TKNDBV5ZD}

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	2026-05-18T00:30:55.834581Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dbe664ce4afb5647a17cfcd4d186bdc8d62f6dfcb2657cab6e441def1fb1b8b1

Aliases

arxiv: 1711.03531 · arxiv_version: 1711.03531v1 · doi: 10.48550/arxiv.1711.03531 · pith_short_12: 3PTGJTSK7NLE · pith_short_16: 3PTGJTSK7NLEPIL4 · pith_short_8: 3PTGJTSK

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/3PTGJTSK7NLEPIL47TKNDBV5ZD \
  | 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: dbe664ce4afb5647a17cfcd4d186bdc8d62f6dfcb2657cab6e441def1fb1b8b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb5cc1ab420bffad47a908f7461dc34b228837b7ee1d1393fc5a0ce3758cb556",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2017-11-09T18:55:57Z",
    "title_canon_sha256": "212a0f10e8c76e9f4b99ec278d3cc8fd4f880a1180c557788d1b8606ccf2c739"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.03531",
    "kind": "arxiv",
    "version": 1
  }
}