Pith Number

pith:JSTW6FVG

pith:2015:JSTW6FVGZPS5GDZGOCHVNLQ7VW

not attested not anchored not stored refs pending

Tetrachromagea

Jimmy Dillies

arxiv:1505.04487 v1 · 2015-05-18 · 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{JSTW6FVGZPS5GDZGOCHVNLQ7VW}

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	2026-05-18T02:07:25.325999Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ca76f16a6cbe5d30f26708f56ae1fad9958bf7574e35ec280ab7cfc555fc19c

Aliases

arxiv: 1505.04487 · arxiv_version: 1505.04487v1 · doi: 10.48550/arxiv.1505.04487 · pith_short_12: JSTW6FVGZPS5 · pith_short_16: JSTW6FVGZPS5GDZG · pith_short_8: JSTW6FVG

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/JSTW6FVGZPS5GDZGOCHVNLQ7VW \
  | 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: 4ca76f16a6cbe5d30f26708f56ae1fad9958bf7574e35ec280ab7cfc555fc19c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "083a4a020b4366f7ef3644b54e3400edf5574c12d2c64ccd6e1f2e92d6cbade9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-05-18T01:41:20Z",
    "title_canon_sha256": "15da4a606ce2c562e83ec9ec80f27dd556136e75ca2ebca84121929eabe587c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.04487",
    "kind": "arxiv",
    "version": 1
  }
}