Pith Number

pith:N7ATTCIS

pith:2017:N7ATTCIS6NVRI4INVMXNQJV6S3

not attested not anchored not stored refs pending

Linking systems of difference sets

Jonathan Jedwab, Samuel Simon, Shuxing Li

arxiv:1708.04405 v2 · 2017-08-15 · 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{N7ATTCIS6NVRI4INVMXNQJV6S3}

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	2026-05-18T00:18:00.192664Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6fc1398912f36b14710dab2ed826be96e7ed920a5ba8ae9eeb81bbfb9e2e1943

Aliases

arxiv: 1708.04405 · arxiv_version: 1708.04405v2 · doi: 10.48550/arxiv.1708.04405 · pith_short_12: N7ATTCIS6NVR · pith_short_16: N7ATTCIS6NVRI4IN · pith_short_8: N7ATTCIS

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/N7ATTCIS6NVRI4INVMXNQJV6S3 \
  | 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: 6fc1398912f36b14710dab2ed826be96e7ed920a5ba8ae9eeb81bbfb9e2e1943

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1380660e87db2259a12fb7a206066a32952476694f3d4b5fff030a0a5dfa9150",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-08-15T06:01:52Z",
    "title_canon_sha256": "8f42c530990e5cefe89579f8f4d64740dd67240006f88d59536bb50fbe033403"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.04405",
    "kind": "arxiv",
    "version": 2
  }
}