Pith Number

pith:BCO7EFYI

pith:2015:BCO7EFYIAT4WCQ7CTECWNJOK3S

not attested not anchored not stored refs pending

Spatial chaos of Wang tiles with two symbols

Jin-Yu Chen, Song-Sun Lin, Wen-Guei Hu, Yu-Jie Chen

arxiv:1507.04070 v1 · 2015-07-15 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BCO7EFYIAT4WCQ7CTECWNJOK3S}

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	2026-05-18T01:18:44.174102Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

089df2170804f96143e2990566a5cadcacff108978ca4ba5adbfbc8bfa67d7c1

Aliases

arxiv: 1507.04070 · arxiv_version: 1507.04070v1 · doi: 10.48550/arxiv.1507.04070 · pith_short_12: BCO7EFYIAT4W · pith_short_16: BCO7EFYIAT4WCQ7C · pith_short_8: BCO7EFYI

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/BCO7EFYIAT4WCQ7CTECWNJOK3S \
  | 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: 089df2170804f96143e2990566a5cadcacff108978ca4ba5adbfbc8bfa67d7c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24c6ea1dc60808c3c130621435a9eabb45b4b61a3234b8efde8bea32569edd9d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2015-07-15T02:17:26Z",
    "title_canon_sha256": "38227dd674ee46be5ed1e27c9f11442ffd4bf51310a2fba40ced7e2c8a05a4ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.04070",
    "kind": "arxiv",
    "version": 1
  }
}