Pith Number

pith:P35GCDEP

pith:2019:P35GCDEP4A6QRS3SZYDK6R2IQB

not attested not anchored not stored refs pending

Characteristic Parameters and Special Trapezoidal Words

Alessandro De Luca, Alma D'Aniello

arxiv:1906.01346 v1 · 2019-06-04 · cs.DM · cs.FL · 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{P35GCDEP4A6QRS3SZYDK6R2IQB}

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	2026-05-17T23:44:16.961474Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7efa610c8fe03d08cb72ce06af4748806a0ceaad9283d0859d43f8ab2f824068

Aliases

arxiv: 1906.01346 · arxiv_version: 1906.01346v1 · doi: 10.48550/arxiv.1906.01346 · pith_short_12: P35GCDEP4A6Q · pith_short_16: P35GCDEP4A6QRS3S · pith_short_8: P35GCDEP

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/P35GCDEP4A6QRS3SZYDK6R2IQB \
  | 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: 7efa610c8fe03d08cb72ce06af4748806a0ceaad9283d0859d43f8ab2f824068

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5446b322b1ea2a8c28238e528ac7825bc4c8409c2e08b4eaf66d79ec96265a26",
    "cross_cats_sorted": [
      "cs.FL",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2019-06-04T11:07:29Z",
    "title_canon_sha256": "3d03698c0d688852636335bede3d1a691fd71d05f4471aacda39858428a8d3d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.01346",
    "kind": "arxiv",
    "version": 1
  }
}