Pith Number

pith:TDV4JOHG

pith:2017:TDV4JOHGTZ45FTMQCKPG2GYILO

not attested not anchored not stored refs pending

On homology cobordism and local equivalence between plumbed manifolds

Irving Dai, Matthew Stoffregen

arxiv:1710.08055 v3 · 2017-10-23 · 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{TDV4JOHGTZ45FTMQCKPG2GYILO}

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	2026-05-17T23:48:23.969117Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98ebc4b8e69e79d2cd90129e6d1b085b825d68908d4ca2225aeaf8db6815ab97

Aliases

arxiv: 1710.08055 · arxiv_version: 1710.08055v3 · doi: 10.48550/arxiv.1710.08055 · pith_short_12: TDV4JOHGTZ45 · pith_short_16: TDV4JOHGTZ45FTMQ · pith_short_8: TDV4JOHG

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/TDV4JOHGTZ45FTMQCKPG2GYILO \
  | 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: 98ebc4b8e69e79d2cd90129e6d1b085b825d68908d4ca2225aeaf8db6815ab97

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f6c8852277093c273c70c26bfbbb0f89bb31043144a10f1f5b77db75e64d54c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2017-10-23T01:24:33Z",
    "title_canon_sha256": "9b28d1d45b445c74542235d5122af6b8385d5e4159aa29e8d372580ec6bbde50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.08055",
    "kind": "arxiv",
    "version": 3
  }
}