Pith Number

pith:IOOS5PLC

pith:2009:IOOS5PLCSRW43BAZ3H3RPDQZRS

not attested not anchored not stored refs pending

Topological Index Theory for Surfaces in 3-Manifolds

David Bachman

arxiv:0901.0208 v2 · 2009-01-02 · 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{IOOS5PLCSRW43BAZ3H3RPDQZRS}

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	2026-05-18T02:38:18.940947Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

439d2ebd62946dcd8419d9f7178e198c992f68c9e76294f9e2dacb92080c1357

Aliases

arxiv: 0901.0208 · arxiv_version: 0901.0208v2 · doi: 10.48550/arxiv.0901.0208 · pith_short_12: IOOS5PLCSRW4 · pith_short_16: IOOS5PLCSRW43BAZ · pith_short_8: IOOS5PLC

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/IOOS5PLCSRW43BAZ3H3RPDQZRS \
  | 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: 439d2ebd62946dcd8419d9f7178e198c992f68c9e76294f9e2dacb92080c1357

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d534185fe424cbc2ca9e6344418bac2717d4f103a86651ad2fc654ad5eadedc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2009-01-02T02:33:08Z",
    "title_canon_sha256": "4ece2ae42cbbefdb33e4de796a85614a51da96c228f0ef3027656e4d5c14df1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.0208",
    "kind": "arxiv",
    "version": 2
  }
}