Pith Number

pith:2POKP3P7

pith:2026:2POKP3P7YEYNMCJX25EJAAWNF6

not attested not anchored not stored refs pending

Lossy compression of weighted graph adjacency matrices by transform coding

Antonio Ortega, Hiroshi Higashi, Junya Hara, Kenta Yanagiya, Yuichi Tanaka

arxiv:2607.14834 v1 · 2026-07-16 · cs.IT · eess.SP · 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{2POKP3P7YEYNMCJX25EJAAWNF6}

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	2026-07-17T01:21:33.517456Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3dca7edffc130d60937d7489002cd2f86b18bec0b398403680fbffbb28f22b7

Aliases

arxiv: 2607.14834 · arxiv_version: 2607.14834v1 · doi: 10.48550/arxiv.2607.14834 · pith_short_12: 2POKP3P7YEYN · pith_short_16: 2POKP3P7YEYNMCJX · pith_short_8: 2POKP3P7

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/2POKP3P7YEYNMCJX25EJAAWNF6 \
  | 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: d3dca7edffc130d60937d7489002cd2f86b18bec0b398403680fbffbb28f22b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00b563aae54659aa5038147a596e227909bf641fe23a10a22534d6961c47d752",
    "cross_cats_sorted": [
      "eess.SP",
      "math.IT"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2026-07-16T10:56:51Z",
    "title_canon_sha256": "e46fe7b1b8139b9430b6386c6c98215f1b549e23c08ff0a9652f6ba040c82703"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.14834",
    "kind": "arxiv",
    "version": 1
  }
}