Pith Number

pith:SSHBWPBR

pith:2025:SSHBWPBRTA36HCSP4KOENDDYWF

not attested not anchored not stored refs pending

AG codes from the Hermitian curve for Cross-Subspace Alignment in Private Information Retrieval

Enrico Mezzano, Francesco Ghiandoni, Marco Timpanella, Massimo Giulietti

arxiv:2508.19459 v1 · 2025-08-26 · math.AG · 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{SSHBWPBRTA36HCSP4KOENDDYWF}

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	2026-07-05T12:00:11.877635Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

948e1b3c319837e38a4fe29c468c78b141aea222909cc7cc37fcf8f8b0e86b4c

Aliases

arxiv: 2508.19459 · arxiv_version: 2508.19459v1 · doi: 10.48550/arxiv.2508.19459 · pith_short_12: SSHBWPBRTA36 · pith_short_16: SSHBWPBRTA36HCSP · pith_short_8: SSHBWPBR

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/SSHBWPBRTA36HCSP4KOENDDYWF \
  | 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: 948e1b3c319837e38a4fe29c468c78b141aea222909cc7cc37fcf8f8b0e86b4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22ee6aafcbce2962f92368034340bccc77fe7d146731ffa296e0d88efb98c8c9",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2025-08-26T22:25:05Z",
    "title_canon_sha256": "bfbe0208449491b8bd83eeecb27caeebc51a9c977753022572e2fbc1bfe7d849"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.19459",
    "kind": "arxiv",
    "version": 1
  }
}