Pith Number

pith:JHQ3LWPS

pith:2019:JHQ3LWPSALN4WFDZYTJDW6OW7M

not attested not anchored not stored refs pending

On the profinite homotopy type of log schemes

David Carchedi, Mattia Talpo, Nicol\`o Sibilla, Sarah Scherotzke

arxiv:1905.06243 v1 · 2019-05-15 · math.AG · math.AT · math.CT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JHQ3LWPSALN4WFDZYTJDW6OW7M}

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	2026-05-17T23:46:07.035418Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

49e1b5d9f202dbcb1479c4d23b79d6fb30d700156569a5c39b5ab137dfe41db9

Aliases

arxiv: 1905.06243 · arxiv_version: 1905.06243v1 · doi: 10.48550/arxiv.1905.06243 · pith_short_12: JHQ3LWPSALN4 · pith_short_16: JHQ3LWPSALN4WFDZ · pith_short_8: JHQ3LWPS

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/JHQ3LWPSALN4WFDZYTJDW6OW7M \
  | 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: 49e1b5d9f202dbcb1479c4d23b79d6fb30d700156569a5c39b5ab137dfe41db9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0d58f037115c20357b007e9ffd16f91ea3704fc0961a5d6cd685f853c3ef1f1",
    "cross_cats_sorted": [
      "math.AT",
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2019-05-15T15:26:10Z",
    "title_canon_sha256": "f6c7b203a7790bd62f7d353c2bf09074f6bccc64d4aab03e038cca569df58201"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.06243",
    "kind": "arxiv",
    "version": 1
  }
}