Pith Number

pith:AS6YZBSD

pith:2011:AS6YZBSDIHR45IVP7IG3C6M242

not attested not anchored not stored refs pending

A closed contact cycle on the ideal trefoil

Henryk Gerlach, Mathias Carlen

arxiv:1103.3633 v1 · 2011-03-18 · math.GT · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AS6YZBSDIHR45IVP7IG3C6M242}

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	2026-05-18T02:22:18.255255Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

04bd8c864341e3cea2affa0db1799ae698ae8b96642961c4f3740c640e0a0b0c

Aliases

arxiv: 1103.3633 · arxiv_version: 1103.3633v1 · doi: 10.48550/arxiv.1103.3633 · pith_short_12: AS6YZBSDIHR4 · pith_short_16: AS6YZBSDIHR45IVP · pith_short_8: AS6YZBSD

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/AS6YZBSDIHR45IVP7IG3C6M242 \
  | 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: 04bd8c864341e3cea2affa0db1799ae698ae8b96642961c4f3740c640e0a0b0c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4d7c42c6bbd54763fe1b0bb6cf2905354caf23aea6c7a06e14dc768dbb2aab9",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2011-03-18T14:40:36Z",
    "title_canon_sha256": "1853979b5c9284e65c9576851cd97d1a020299e3d77b1cc0a3824bb90cbe5cb5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.3633",
    "kind": "arxiv",
    "version": 1
  }
}