Pith Number

pith:ULPC3S74

pith:2019:ULPC3S74DHW47IJRLBJ7BCIROG

not attested not anchored not stored refs pending

New Constructions of Subspace Codes Using Subsets of MRD codes in Several Blocks

Hao Chen, Jian Weng, Liqing Xu, Xianmang He

arxiv:1908.03804 v2 · 2019-08-10 · 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{ULPC3S74DHW47IJRLBJ7BCIROG}

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	2026-07-05T00:29:28.739340Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2de2dcbfc19edcfa1315853f08911718bce7fbadfcc0579b284c5e985ddddbf

Aliases

arxiv: 1908.03804 · arxiv_version: 1908.03804v2 · doi: 10.48550/arxiv.1908.03804 · pith_short_12: ULPC3S74DHW4 · pith_short_16: ULPC3S74DHW47IJR · pith_short_8: ULPC3S74

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/ULPC3S74DHW47IJRLBJ7BCIROG \
  | 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: a2de2dcbfc19edcfa1315853f08911718bce7fbadfcc0579b284c5e985ddddbf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "749b02c13dd602f1e1991c736082220aaffd0572cd515d2e5a6ea1f78b47d344",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2019-08-10T20:59:50Z",
    "title_canon_sha256": "ee32f149c7ab7e04236d4649984306dd562d228b34688bff3e1bf7a68bd553eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.03804",
    "kind": "arxiv",
    "version": 2
  }
}