Pith Number

pith:OHME3MKA

pith:2017:OHME3MKATOC5JP7G47Y2OUNZHF

not attested not anchored not stored refs pending

Optimal Ramp Schemes and Related Combinatorial Objects

Douglas R. Stinson

arxiv:1705.06247 v1 · 2017-05-17 · cs.CR · 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{OHME3MKATOC5JP7G47Y2OUNZHF}

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	2026-05-18T00:44:18.346453Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71d84db1409b85d4bfe6e7f1a751b939671325df031275e9dd7b9f0ff1951137

Aliases

arxiv: 1705.06247 · arxiv_version: 1705.06247v1 · doi: 10.48550/arxiv.1705.06247 · pith_short_12: OHME3MKATOC5 · pith_short_16: OHME3MKATOC5JP7G · pith_short_8: OHME3MKA

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/OHME3MKATOC5JP7G47Y2OUNZHF \
  | 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: 71d84db1409b85d4bfe6e7f1a751b939671325df031275e9dd7b9f0ff1951137

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a5e78dbc3f9b52cdfd96864b07884312edc6349257fe1333fe6e643d8505d7a",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2017-05-17T16:28:20Z",
    "title_canon_sha256": "17c7e40b6091c8f75a653d64678c9e4ab8a5e6316b2d4f3f4d780e3aaaa81ee9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.06247",
    "kind": "arxiv",
    "version": 1
  }
}