Pith Number

pith:EHA3RINS

pith:2019:EHA3RINS6GEM2TSWNQH2V5J66Z

not attested not anchored not stored refs pending

The c-map on groups

Andrew Swann, Oscar Macia

arxiv:1908.01736 v1 · 2019-08-05 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EHA3RINS6GEM2TSWNQH2V5J66Z}

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	2026-07-05T00:31:14.597256Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21c1b8a1b2f188cd4e566c0faaf53ef6673b226338ccebf79003ad007391928d

Aliases

arxiv: 1908.01736 · arxiv_version: 1908.01736v1 · doi: 10.48550/arxiv.1908.01736 · pith_short_12: EHA3RINS6GEM · pith_short_16: EHA3RINS6GEM2TSW · pith_short_8: EHA3RINS

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/EHA3RINS6GEM2TSWNQH2V5J66Z \
  | 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: 21c1b8a1b2f188cd4e566c0faaf53ef6673b226338ccebf79003ad007391928d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6288882e5942ebbe30e161e580122db8f4b1e6ee75c30addd41256b64a435958",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2019-08-05T17:27:04Z",
    "title_canon_sha256": "0f7794ab3a283d2489ad3923d9a79dfb2addd2ee5ec21eea0b229db6f3504570"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.01736",
    "kind": "arxiv",
    "version": 1
  }
}