Pith Number

pith:ODADPWTV

pith:2010:ODADPWTV3DMIUOIK5PDNAKLDWG

not attested not anchored not stored refs pending

Lecture notes on stabilization of contact open books

Otto van Koert

arxiv:1012.4359 v1 · 2010-12-20 · 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{ODADPWTV3DMIUOIK5PDNAKLDWG}

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	2026-05-18T00:01:23.899873Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70c037da75d8d88a390aebc6d02963b184434ecfbd63ef438c4170add244ac24

Aliases

arxiv: 1012.4359 · arxiv_version: 1012.4359v1 · doi: 10.48550/arxiv.1012.4359 · pith_short_12: ODADPWTV3DMI · pith_short_16: ODADPWTV3DMIUOIK · pith_short_8: ODADPWTV

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/ODADPWTV3DMIUOIK5PDNAKLDWG \
  | 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: 70c037da75d8d88a390aebc6d02963b184434ecfbd63ef438c4170add244ac24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45f870077f4d354cf59548c67860581e217c67f6bac82381ff270366a176411c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2010-12-20T15:34:00Z",
    "title_canon_sha256": "ceb6c6ab67e15b831a179ced6b8019d274e3172e776c0c8995853ef4c62aca14"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.4359",
    "kind": "arxiv",
    "version": 1
  }
}