Pith Number

pith:CSL6KYBV

pith:2006:CSL6KYBVQFRBBXMPDJ4FUKT6H4

not attested not anchored not stored refs pending

k-Normal surfaces

Bruno Martelli, Evgeny Fominykh

arxiv:math/0606099 v1 · 2006-06-05 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CSL6KYBVQFRBBXMPDJ4FUKT6H4}

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	2026-05-18T04:22:10.424691Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1497e56035816210dd8f1a785a2a7e3f1077dbabfb54810f8f4e06618af9b815

Aliases

arxiv: math/0606099 · arxiv_version: math/0606099v1 · doi: 10.48550/arxiv.math/0606099 · pith_short_12: CSL6KYBVQFRB · pith_short_16: CSL6KYBVQFRBBXMP · pith_short_8: CSL6KYBV

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/CSL6KYBVQFRBBXMPDJ4FUKT6H4 \
  | 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: 1497e56035816210dd8f1a785a2a7e3f1077dbabfb54810f8f4e06618af9b815

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5cb8af679794cf33c298da32b0f7b3a44f761ebbb716c0cdecff8c81b0fc934f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.GT",
    "submitted_at": "2006-06-05T09:41:27Z",
    "title_canon_sha256": "d609d06f6361df2115b52f82cf9308e0a5066b009559b08287a28f60561b4860"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0606099",
    "kind": "arxiv",
    "version": 1
  }
}