Pith Number

pith:OGXIJ5YB

pith:2019:OGXIJ5YBNGL7AAITVDGCTJBI5M

not attested not anchored not stored refs pending

Properly discontinuous actions versus uniform embeddings

Kevin Schreve

arxiv:1903.03648 v1 · 2019-03-08 · math.GR · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OGXIJ5YBNGL7AAITVDGCTJBI5M}

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	2026-05-17T23:51:41.394260Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71ae84f7016997f00113a8cc29a428eb3209df1aa17a02a42874556dcea89796

Aliases

arxiv: 1903.03648 · arxiv_version: 1903.03648v1 · doi: 10.48550/arxiv.1903.03648 · pith_short_12: OGXIJ5YBNGL7 · pith_short_16: OGXIJ5YBNGL7AAIT · pith_short_8: OGXIJ5YB

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/OGXIJ5YBNGL7AAITVDGCTJBI5M \
  | 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: 71ae84f7016997f00113a8cc29a428eb3209df1aa17a02a42874556dcea89796

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca328f1c6de0db272e29acf74c520e2519174220ce887ecd4c35bfd4b0d8ffe2",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2019-03-08T20:02:38Z",
    "title_canon_sha256": "db8afc072db13079a17b9c09ca861af733b8c8e43559b2d256901c4f3c3e940f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.03648",
    "kind": "arxiv",
    "version": 1
  }
}