Pith Number

pith:D3AQDQXJ

pith:2018:D3AQDQXJSD5EQIKIXV6OFLLTRJ

not attested not anchored not stored refs pending

Oddities of quantum colorings

David E. Roberson, Laura Man\v{c}inska

arxiv:1801.03542 v1 · 2018-01-10 · quant-ph · 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{D3AQDQXJSD5EQIKIXV6OFLLTRJ}

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	2026-05-18T00:26:13.977067Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ec101c2e990fa482148bd7ce2ad738a53aca85f63285e1dd7c379f226e1632f

Aliases

arxiv: 1801.03542 · arxiv_version: 1801.03542v1 · doi: 10.48550/arxiv.1801.03542 · pith_short_12: D3AQDQXJSD5E · pith_short_16: D3AQDQXJSD5EQIKI · pith_short_8: D3AQDQXJ

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/D3AQDQXJSD5EQIKIXV6OFLLTRJ \
  | 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: 1ec101c2e990fa482148bd7ce2ad738a53aca85f63285e1dd7c379f226e1632f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "32b6c7a5e90bc3f0000f6fd7ff5e785753459b65e369d967a602e7772e98588a",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-01-10T20:20:39Z",
    "title_canon_sha256": "6231c44e2d943fd72da7cc4dd8be9a3e16068bc92b14734e2ff40344c95beebd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.03542",
    "kind": "arxiv",
    "version": 1
  }
}