Pith Number

pith:B6YT5PCG

pith:2026:B6YT5PCGL4NKHY4S23TMUPBMG3

not attested not anchored not stored refs pending

Representability of $q$-matroids via rank-metric codes

Gianira N. Alfarano, Sebastian Degen

arxiv:2605.15780 v1 · 2026-05-15 · 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{B6YT5PCGL4NKHY4S23TMUPBMG3}

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.

Cited by

1 paper in Pith

The geometry of rank-metric codes

Receipt and verification

First computed	2026-05-20T00:01:17.921657Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0fb13ebc465f1aa3e392d6e6ca3c2c36e2d2383edc7eccfa879fd9d9ba959304

Aliases

arxiv: 2605.15780 · arxiv_version: 2605.15780v1 · doi: 10.48550/arxiv.2605.15780 · pith_short_12: B6YT5PCGL4NK · pith_short_16: B6YT5PCGL4NKHY4S · pith_short_8: B6YT5PCG

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/B6YT5PCGL4NKHY4S23TMUPBMG3 \
  | 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: 0fb13ebc465f1aa3e392d6e6ca3c2c36e2d2383edc7eccfa879fd9d9ba959304

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9366832d4a0a40a8e511ee7a383675a8ab849fd45d73ff22acb36228f0f19934",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2026-05-15T09:40:12Z",
    "title_canon_sha256": "a5eada11f1b2ad4c0e86567dfa91a6905a4be098f10992bb7053208dcf8ae9fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.15780",
    "kind": "arxiv",
    "version": 1
  }
}