Pith Number

pith:7GF3EXZX

pith:2026:7GF3EXZXADZHGDCD5QB62SG62E

not attested not anchored not stored refs pending

Upper bounds on the length of quasi-MDS codes

Rub\'en Rodr\'iguez-Ballesteros, Umberto Mart\'inez-Pe\~{n}as

arxiv:2607.26684 v1 · 2026-07-29 · cs.IT · 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{7GF3EXZXADZHGDCD5QB62SG62E}

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	2026-07-30T01:21:55.972312Z
Builder	pith-number-builder-2026-05-17-v1
Signature	unsigned_v0
Schema	pith-number/v1.0

Canonical hash

f98bb25f3700f2730c43ec03ed48ded122a166b8f48ab4d2762d39bad6b157d3

Aliases

arxiv: 2607.26684 · arxiv_version: 2607.26684v1 · doi: 10.48550/arxiv.2607.26684 · pith_short_12: 7GF3EXZXADZH · pith_short_16: 7GF3EXZXADZHGDCD · pith_short_8: 7GF3EXZX

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/7GF3EXZXADZHGDCD5QB62SG62E \
  | 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: f98bb25f3700f2730c43ec03ed48ded122a166b8f48ab4d2762d39bad6b157d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d05da29fc3783a8b530c8b1f599565c276c703a9182c6e8402f6a38e4f4ea1d1",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2026-07-29T09:34:20Z",
    "title_canon_sha256": "d6e15b3546dfa9b9fa9f2814c858c679debdf8be2c4eaeded3bede4e30e8abbf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.26684",
    "kind": "arxiv",
    "version": 1
  }
}