Pith Number

pith:3EIJ6VKZ

pith:2019:3EIJ6VKZFGFSWZ4MRPAXRECQY7

not attested not anchored not stored refs pending

Connection Cochain of Abelian Extensions and Connection $1$-Forms

Boshu Ding

arxiv:1907.05989 v1 · 2019-07-13 · math.DG · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3EIJ6VKZFGFSWZ4MRPAXRECQY7}

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	2026-05-17T23:40:42.746053Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d9109f5559298b2b678c8bc1789050c7e17c5cf08056851cdc2de00620e2c0ce

Aliases

arxiv: 1907.05989 · arxiv_version: 1907.05989v1 · doi: 10.48550/arxiv.1907.05989 · pith_short_12: 3EIJ6VKZFGFS · pith_short_16: 3EIJ6VKZFGFSWZ4M · pith_short_8: 3EIJ6VKZ

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/3EIJ6VKZFGFSWZ4MRPAXRECQY7 \
  | 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: d9109f5559298b2b678c8bc1789050c7e17c5cf08056851cdc2de00620e2c0ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f96c05640baf91a9a53d1d29d84571bcc6b5835f03f1b1526cbb480808c9a43a",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2019-07-13T01:05:15Z",
    "title_canon_sha256": "06f0c5b3aeba9eeeede42d8655f42353c6cc5301330f44289cb389833e15941a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.05989",
    "kind": "arxiv",
    "version": 1
  }
}