Pith Number

pith:SUQI3SFD

pith:2017:SUQI3SFDMQST6SKHIPGFQTQYGH

not attested not anchored not stored refs pending

Two-Dimensional Systolic Complexes Satisfy Property A

Damian Osajda, Nima Hoda

arxiv:1711.09656 v2 · 2017-11-27 · math.MG · 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{SUQI3SFDMQST6SKHIPGFQTQYGH}

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	2026-05-17T23:45:53.341647Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

95208dc8a364253f494743cc584e1831d7946965338bb060f6fccc0c3bf14710

Aliases

arxiv: 1711.09656 · arxiv_version: 1711.09656v2 · doi: 10.48550/arxiv.1711.09656 · pith_short_12: SUQI3SFDMQST · pith_short_16: SUQI3SFDMQST6SKH · pith_short_8: SUQI3SFD

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/SUQI3SFDMQST6SKHIPGFQTQYGH \
  | 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: 95208dc8a364253f494743cc584e1831d7946965338bb060f6fccc0c3bf14710

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f710646fc7545cae1f296c336ec3b7ede58374f5a322385ef2a3d6775e1e82f4",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2017-11-27T12:42:49Z",
    "title_canon_sha256": "822fff5dcead1016553e6b1ab4116880a78503269f6ed25c55b92595beab885d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.09656",
    "kind": "arxiv",
    "version": 2
  }
}