Pith Number

pith:EVCJKECK

pith:2010:EVCJKECKWHKDSI27KOQCU57HAB

not attested not anchored not stored refs pending

New distinct curves having the same complement in the projective plane

Paolo Costa

arxiv:1011.6337 v1 · 2010-11-29 · math.AG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EVCJKECKWHKDSI27KOQCU57HAB}

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	2026-05-18T04:34:35.982666Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

254495104ab1d439235f53a02a77e70044e354fd1f388fd92cd057239604c745

Aliases

arxiv: 1011.6337 · arxiv_version: 1011.6337v1 · doi: 10.48550/arxiv.1011.6337 · pith_short_12: EVCJKECKWHKD · pith_short_16: EVCJKECKWHKDSI27 · pith_short_8: EVCJKECK

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/EVCJKECKWHKDSI27KOQCU57HAB \
  | 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: 254495104ab1d439235f53a02a77e70044e354fd1f388fd92cd057239604c745

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a833c3b9eaba4aaf49e3913f3e31b8a8b7cc7e06ebfe483976ba178a8caafdd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2010-11-29T19:19:56Z",
    "title_canon_sha256": "2ebf05c53670d30d05265cc7f3590016b017923f4231aeb9849ad14809818ad8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.6337",
    "kind": "arxiv",
    "version": 1
  }
}