Pith Number

pith:THJQVGEW

pith:2018:THJQVGEWKI5EMJVSJSU2M5UULZ

not attested not anchored not stored refs pending

Smoothness filtration of the magnitude complex

Kiyonori Gomi

arxiv:1809.06593 v4 · 2018-09-18 · 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{THJQVGEWKI5EMJVSJSU2M5UULZ}

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	2026-05-17T23:52:27.159166Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99d30a9896523a4626b24ca9a676945e5454b2246079d6b4e5ffeaa8a7eb9cf4

Aliases

arxiv: 1809.06593 · arxiv_version: 1809.06593v4 · doi: 10.48550/arxiv.1809.06593 · pith_short_12: THJQVGEWKI5E · pith_short_16: THJQVGEWKI5EMJVS · pith_short_8: THJQVGEW

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/THJQVGEWKI5EMJVSJSU2M5UULZ \
  | 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: 99d30a9896523a4626b24ca9a676945e5454b2246079d6b4e5ffeaa8a7eb9cf4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17e9210532069c001928c9984db93dffe0ec5b3470a475461ecdd5bd8fc40740",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2018-09-18T08:47:06Z",
    "title_canon_sha256": "9bd5de57d112b9eca06844b2bd72ef5b88032d0e06db14993b087f548d0909a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.06593",
    "kind": "arxiv",
    "version": 4
  }
}