Pith Number

pith:SQSBATFA

pith:2019:SQSBATFAHEHQQ4G7FU5BAFR2AS

not attested not anchored not stored refs pending

Hamming and simplex codes for the sum-rank metric

Umberto Mart\'inez-Pe\~nas

arxiv:1908.03239 v2 · 2019-08-08 · 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{SQSBATFAHEHQQ4G7FU5BAFR2AS}

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	2026-07-05T02:06:04.761234Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9424104ca0390f0870df2d3a10163a04b2dfce7b7c405cb11410de469466a99c

Aliases

arxiv: 1908.03239 · arxiv_version: 1908.03239v2 · doi: 10.48550/arxiv.1908.03239 · pith_short_12: SQSBATFAHEHQ · pith_short_16: SQSBATFAHEHQQ4G7 · pith_short_8: SQSBATFA

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/SQSBATFAHEHQQ4G7FU5BAFR2AS \
  | 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: 9424104ca0390f0870df2d3a10163a04b2dfce7b7c405cb11410de469466a99c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a9e4b6a7a2ad9563311b5aa9e56d8b4b7258907308f37303825ac17d0ddcd98",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2019-08-08T19:04:18Z",
    "title_canon_sha256": "4ec9da33f57fa32138313407e3b852a56dbb4ff98dba0f4ae9c759835c5a0bd7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.03239",
    "kind": "arxiv",
    "version": 2
  }
}