Pith Number

pith:BHCCFFAU

pith:2008:BHCCFFAUZXBXSTC7PECAL7C6ZH

not attested not anchored not stored refs pending

Coding Theory and Projective Spaces

Natalia Silberstein

arxiv:0805.3528 v2 · 2008-05-22 · 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{BHCCFFAUZXBXSTC7PECAL7C6ZH}

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	2026-05-18T04:13:55.419520Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09c4229414cdc3794c5f790405fc5ec9d2b1c1b0b48aae2242197dadcb1f101d

Aliases

arxiv: 0805.3528 · arxiv_version: 0805.3528v2 · doi: 10.48550/arxiv.0805.3528 · pith_short_12: BHCCFFAUZXBX · pith_short_16: BHCCFFAUZXBXSTC7 · pith_short_8: BHCCFFAU

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/BHCCFFAUZXBXSTC7PECAL7C6ZH \
  | 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: 09c4229414cdc3794c5f790405fc5ec9d2b1c1b0b48aae2242197dadcb1f101d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27e79be04e0fb0b348872a7e68e5791b23c1e613c8b070fb3777c0f8a06ab3bf",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2008-05-22T19:37:57Z",
    "title_canon_sha256": "df3b2f29eaa77b524b9ba412208a861f67fffdbc98a1ba23e3df79a8ec736269"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0805.3528",
    "kind": "arxiv",
    "version": 2
  }
}