Pith Number

pith:TTCMUHPE

pith:2008:TTCMUHPEHVPJX4QCUVVJ3UDU3U

not attested not anchored not stored refs pending

Handle moves in contact surgery diagrams

Fan Ding, Hansj\"org Geiges

arxiv:0805.3288 v1 · 2008-05-21 · math.GT · math.SG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TTCMUHPEHVPJX4QCUVVJ3UDU3U}

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	2026-05-18T02:58:11.505956Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9cc4ca1de43d5e9bf202a56a9dd074dd3f5a9a01762458a62fd78694fab00562

Aliases

arxiv: 0805.3288 · arxiv_version: 0805.3288v1 · doi: 10.48550/arxiv.0805.3288 · pith_short_12: TTCMUHPEHVPJ · pith_short_16: TTCMUHPEHVPJX4QC · pith_short_8: TTCMUHPE

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/TTCMUHPEHVPJX4QCUVVJ3UDU3U \
  | 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: 9cc4ca1de43d5e9bf202a56a9dd074dd3f5a9a01762458a62fd78694fab00562

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c09a9dcc429bd43cd4e8ae11c0b1e4421922369cc1e24f1b3323efca3c4a8a0",
    "cross_cats_sorted": [
      "math.SG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2008-05-21T14:29:38Z",
    "title_canon_sha256": "ed997b5219a3b3d1e051548284884f5c1e024b414cef93a654a5ea3acc043e62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0805.3288",
    "kind": "arxiv",
    "version": 1
  }
}