Pith Number

pith:AUOBU7XX

pith:2017:AUOBU7XXX3DHC5QUT66PPWTUIN

not attested not anchored not stored refs pending

Graph homomorphisms on rectangular matrices over division rings II

Kang Zhao, Li-Ping Huang

arxiv:1702.05703 v1 · 2017-02-19 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AUOBU7XXX3DHC5QUT66PPWTUIN}

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	2026-05-18T00:50:25.594703Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

051c1a7ef7bec67176149fbcf7da74435a4e35b31fee1c6da85f1fcb70528584

Aliases

arxiv: 1702.05703 · arxiv_version: 1702.05703v1 · doi: 10.48550/arxiv.1702.05703 · pith_short_12: AUOBU7XXX3DH · pith_short_16: AUOBU7XXX3DHC5QU · pith_short_8: AUOBU7XX

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/AUOBU7XXX3DHC5QUT66PPWTUIN \
  | 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: 051c1a7ef7bec67176149fbcf7da74435a4e35b31fee1c6da85f1fcb70528584

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "058f34e97dabcd6c9b61dd61dde5409c8a77ff5a33a0e135999e6d13034447cb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-02-19T05:39:20Z",
    "title_canon_sha256": "37f8947437125131c53f75232c536fa78cdb54d06c05c6734d03ca3b0d1fbb88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.05703",
    "kind": "arxiv",
    "version": 1
  }
}