Pith Number

pith:PY22KZNQ

pith:2016:PY22KZNQ3PUJQYX6ULYNSZMD7Q

not attested not anchored not stored refs pending

Matching Rules for the Sphinx Tiling Substitution

Chaim Goodman-Strauss

arxiv:1608.07168 v1 · 2016-08-25 · 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{PY22KZNQ3PUJQYX6ULYNSZMD7Q}

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	2026-05-18T01:07:54.649828Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e35a565b0dbe89862fea2f0d96583fc1dfd327b1b1a744ea38ba08ad337f07a

Aliases

arxiv: 1608.07168 · arxiv_version: 1608.07168v1 · doi: 10.48550/arxiv.1608.07168 · pith_short_12: PY22KZNQ3PUJ · pith_short_16: PY22KZNQ3PUJQYX6 · pith_short_8: PY22KZNQ

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/PY22KZNQ3PUJQYX6ULYNSZMD7Q \
  | 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: 7e35a565b0dbe89862fea2f0d96583fc1dfd327b1b1a744ea38ba08ad337f07a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5639cc8553b282b52f2c05746e429d0e9b387dd8704ab7f6cb10343759cabf2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-08-25T14:24:55Z",
    "title_canon_sha256": "7edba4db7cf60171aa2c245fe7b913e3468372380741018a345584e690c27a89"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.07168",
    "kind": "arxiv",
    "version": 1
  }
}