Pith Number

pith:IGEFLT5A

pith:2018:IGEFLT5AZ36YIYUJVB3C7BCDI5

not attested not anchored not stored refs pending

Fine shape I

Sergey A. Melikhov

arxiv:1808.10228 v2 · 2018-08-30 · math.AT · 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{IGEFLT5AZ36YIYUJVB3C7BCDI5}

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.

Cited by

1 paper in Pith

Infinitary combinatorics in condensed math and strong homology

Receipt and verification

First computed	2026-07-05T05:17:41.921483Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

418855cfa0cefd846289a8762f84434778937adfe54a8e9133ce6cd32c0bdc9e

Aliases

arxiv: 1808.10228 · arxiv_version: 1808.10228v2 · doi: 10.48550/arxiv.1808.10228 · pith_short_12: IGEFLT5AZ36Y · pith_short_16: IGEFLT5AZ36YIYUJ · pith_short_8: IGEFLT5A

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/IGEFLT5AZ36YIYUJVB3C7BCDI5 \
  | 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: 418855cfa0cefd846289a8762f84434778937adfe54a8e9133ce6cd32c0bdc9e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eaf23750edeb5b376905908a28aefa3a2dcb9cdf60a7f2d534bdcc71c1f48ae4",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2018-08-30T11:29:18Z",
    "title_canon_sha256": "352f4550008f7ab963463c70d563df84934255ed35cf40bdfbe77c6d2ec3e217"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.10228",
    "kind": "arxiv",
    "version": 2
  }
}