Pith Number

pith:SCR5PW7M

pith:2015:SCR5PW7MGOK6CGL2UOBN3O7BUT

not attested not anchored not stored refs pending

New Classes of Partial Geometries and Their Associated LDPC Codes

Ian Blake, Juane Li, Qiuju Diao, Shu Lin

arxiv:1503.06900 v1 · 2015-03-24 · 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{SCR5PW7MGOK6CGL2UOBN3O7BUT}

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	2026-05-18T02:20:29.825441Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90a3d7dbec3395e1197aa382ddbbe1a4ec5895d5899fc887bc8ccd2ed2a00ac9

Aliases

arxiv: 1503.06900 · arxiv_version: 1503.06900v1 · doi: 10.48550/arxiv.1503.06900 · pith_short_12: SCR5PW7MGOK6 · pith_short_16: SCR5PW7MGOK6CGL2 · pith_short_8: SCR5PW7M

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/SCR5PW7MGOK6CGL2UOBN3O7BUT \
  | 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: 90a3d7dbec3395e1197aa382ddbbe1a4ec5895d5899fc887bc8ccd2ed2a00ac9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e70968b182d305a41be85ad3d1b9b37e732da0116b4152691ea66091e4eceb30",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-03-24T02:53:10Z",
    "title_canon_sha256": "3ee9dfa60b6dcc59120f53efce6fef8c3dbbedcaaff347d9247473305c06587c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.06900",
    "kind": "arxiv",
    "version": 1
  }
}