Pith Number

pith:HBYMWWUC

pith:2018:HBYMWWUCAGRTW66FNRMNC7LVMM

not attested not anchored not stored refs pending

Another look at recovering local homology from samples of stratified sets

Yuriy Mileyko

arxiv:1811.09033 v2 · 2018-11-22 · 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{HBYMWWUCAGRTW66FNRMNC7LVMM}

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	2026-05-17T23:42:15.305114Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3870cb5a8201a33b7bc56c58d17d75633808e40586ea0842d4d47407b9d76d6a

Aliases

arxiv: 1811.09033 · arxiv_version: 1811.09033v2 · doi: 10.48550/arxiv.1811.09033 · pith_short_12: HBYMWWUCAGRT · pith_short_16: HBYMWWUCAGRTW66F · pith_short_8: HBYMWWUC

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/HBYMWWUCAGRTW66FNRMNC7LVMM \
  | 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: 3870cb5a8201a33b7bc56c58d17d75633808e40586ea0842d4d47407b9d76d6a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e20542718529c80f745bdb621b0c27004ddfc69cdfce2f06dca52351577c015",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2018-11-22T06:34:36Z",
    "title_canon_sha256": "944d6e7196ea03876d1942147b040f68f7392d5932e2356659d14e1723aae797"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.09033",
    "kind": "arxiv",
    "version": 2
  }
}