Pith Number

pith:DLW45U5C

pith:2018:DLW45U5CX67YIXOQASW54JLXWH

not attested not anchored not stored refs pending

New LMRD bounds for constant dimension codes and improved constructions

Daniel Heinlein

arxiv:1801.04803 v1 · 2018-01-15 · math.CO · 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{DLW45U5CX67YIXOQASW54JLXWH}

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	2026-05-18T00:26:03.195374Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1aedced3a2bfbf845dd004adde2577b1f0d15d8deb45087420cbe0e545304a89

Aliases

arxiv: 1801.04803 · arxiv_version: 1801.04803v1 · doi: 10.48550/arxiv.1801.04803 · pith_short_12: DLW45U5CX67Y · pith_short_16: DLW45U5CX67YIXOQ · pith_short_8: DLW45U5C

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/DLW45U5CX67YIXOQASW54JLXWH \
  | 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: 1aedced3a2bfbf845dd004adde2577b1f0d15d8deb45087420cbe0e545304a89

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6132015bbe1b65348db9d6b63ca9d2dc35af161424bb635f559b2337cab8e878",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-01-15T13:55:19Z",
    "title_canon_sha256": "5ca3cf565f3837b9202b1428f47dd7461cc3f3d05708375568cfc5165d150545"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.04803",
    "kind": "arxiv",
    "version": 1
  }
}