Pith Number

pith:II37SOUI

pith:2019:II37SOUI7VIQPQRGFMWKSNOL4E

not attested not anchored not stored refs pending

A Polymatroid Approach to Generalized Weights of Rank Metric Codes

Sudhir R. Ghorpade, Trygve Johnsen

arxiv:1904.01913 v2 · 2019-04-03 · cs.IT · math.CO · math.IT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{II37SOUI7VIQPQRGFMWKSNOL4E}

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	2026-05-17T23:45:03.879518Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4237f93a88fd5107c2262b2ca935cbe11f98d5d445920be4c8e7ad47d667989a

Aliases

arxiv: 1904.01913 · arxiv_version: 1904.01913v2 · doi: 10.48550/arxiv.1904.01913 · pith_short_12: II37SOUI7VIQ · pith_short_16: II37SOUI7VIQPQRG · pith_short_8: II37SOUI

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/II37SOUI7VIQPQRGFMWKSNOL4E \
  | 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: 4237f93a88fd5107c2262b2ca935cbe11f98d5d445920be4c8e7ad47d667989a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b531bf1c139a846cb9101c1139903012c45935744b093643f4fb76862c47b504",
    "cross_cats_sorted": [
      "math.CO",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2019-04-03T11:00:14Z",
    "title_canon_sha256": "c29052fd86b32e221492a197042ad5b5271037d2051e9398f00db419b39f5879"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.01913",
    "kind": "arxiv",
    "version": 2
  }
}