Pith Number

pith:SHTZUSCT

pith:2015:SHTZUSCTC4PGJ5UN6DE57P4SFT

not attested not anchored not stored refs pending

Successful Pressing Sequences for a Bicolored Graph and Binary Matrices

Jeffrey Davis, Joshua Cooper

arxiv:1502.07450 v5 · 2015-02-26 · 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{SHTZUSCTC4PGJ5UN6DE57P4SFT}

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	2026-05-18T01:32:00.828895Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91e79a4853171e64f68df0c9dfbf922cfd2bd208f3beaf461682f6433f5b1f1d

Aliases

arxiv: 1502.07450 · arxiv_version: 1502.07450v5 · doi: 10.48550/arxiv.1502.07450 · pith_short_12: SHTZUSCTC4PG · pith_short_16: SHTZUSCTC4PGJ5UN · pith_short_8: SHTZUSCT

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/SHTZUSCTC4PGJ5UN6DE57P4SFT \
  | 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: 91e79a4853171e64f68df0c9dfbf922cfd2bd208f3beaf461682f6433f5b1f1d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8decdbe50e715df520266da8f59bb4d7d8feec164bd04a36b0373bca7b7c4685",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-02-26T06:19:15Z",
    "title_canon_sha256": "c0b355b3d9720e4b344e6005a4e718ab7e529f1ac4d1c68e0a364e91a8fe1ad0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.07450",
    "kind": "arxiv",
    "version": 5
  }
}