Pith Number

pith:HQTKHN44

pith:2016:HQTKHN4456GN7QWWGZ3MSAHYVX

not attested not anchored not stored refs pending

Framed cobordism and flow category moves

Andrew Lobb, Dirk Schuetz, Patrick Orson

arxiv:1605.02003 v1 · 2016-05-06 · math.GT · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HQTKHN4456GN7QWWGZ3MSAHYVX}

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	2026-05-18T00:07:01.300657Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c26a3b79cef8cdfc2d63676c900f8adf3bbe365c51334a39ac247037f50ab85

Aliases

arxiv: 1605.02003 · arxiv_version: 1605.02003v1 · doi: 10.48550/arxiv.1605.02003 · pith_short_12: HQTKHN4456GN · pith_short_16: HQTKHN4456GN7QWW · pith_short_8: HQTKHN44

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/HQTKHN4456GN7QWWGZ3MSAHYVX \
  | 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: 3c26a3b79cef8cdfc2d63676c900f8adf3bbe365c51334a39ac247037f50ab85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b386dcec0f90a63e8c8de80c3ac0b8251fe4d27f239a1475e4bc7184f12017a",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2016-05-06T16:51:07Z",
    "title_canon_sha256": "d6593128bb1751ce1d1bd0d898b93750eeada8f1888a9131085d360622d88802"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.02003",
    "kind": "arxiv",
    "version": 1
  }
}