Pith Number

pith:7TDFT3QA

pith:2020:7TDFT3QANN62ON6BYBBUKPNQ4T

not attested not anchored not stored refs pending

Lifted codes and the multilevel construction for constant dimension codes

Sascha Kurz

arxiv:2004.14241 v1 · 2020-04-29 · 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{7TDFT3QANN62ON6BYBBUKPNQ4T}

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	2026-07-05T00:59:18.487196Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fcc659ee006b7da737c1c043453db0e4d4e88f5d3af2cecaee66a4b16f4304cf

Aliases

arxiv: 2004.14241 · arxiv_version: 2004.14241v1 · doi: 10.48550/arxiv.2004.14241 · pith_short_12: 7TDFT3QANN62 · pith_short_16: 7TDFT3QANN62ON6B · pith_short_8: 7TDFT3QA

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/7TDFT3QANN62ON6BYBBUKPNQ4T \
  | 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: fcc659ee006b7da737c1c043453db0e4d4e88f5d3af2cecaee66a4b16f4304cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "647d8c7a74118f3a9e126c4e1bcfe73a0e707ef504b9c9813db0adea32209f7b",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2020-04-29T14:42:48Z",
    "title_canon_sha256": "c63f0c8dd536f6da9caba5ef09e88fd078c4bb92a7ddedcb216b587575c7e8a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.14241",
    "kind": "arxiv",
    "version": 1
  }
}