Pith Number

pith:AACA5TYF

pith:2019:AACA5TYF2IML4K43GWL52W6SIF

not attested not anchored not stored refs pending

MRD Codes: Constructions and Connections

John Sheekey

arxiv:1904.05813 v1 · 2019-04-11 · 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{AACA5TYF2IML4K43GWL52W6SIF}

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	2026-05-17T23:48:48.365626Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

00040ecf05d218be2b9b3597dd5bd241635ea0cd2dc96db66805d1a4a2f349f4

Aliases

arxiv: 1904.05813 · arxiv_version: 1904.05813v1 · doi: 10.48550/arxiv.1904.05813 · pith_short_12: AACA5TYF2IML · pith_short_16: AACA5TYF2IML4K43 · pith_short_8: AACA5TYF

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/AACA5TYF2IML4K43GWL52W6SIF \
  | 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: 00040ecf05d218be2b9b3597dd5bd241635ea0cd2dc96db66805d1a4a2f349f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb87cd4878a9f689d2a6f154bb9918ffdfeb481511c01bb7841f0b9fdc19b769",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-04-11T16:12:01Z",
    "title_canon_sha256": "15bd9094ce4de74fb7792a3231acc75937059380031ccab6e0c8082cea6d2a60"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.05813",
    "kind": "arxiv",
    "version": 1
  }
}