Pith Number

pith:6HKDPOCX

pith:2015:6HKDPOCXKLQUBGY32G7LPCBKLH

not attested not anchored not stored refs pending

Anabelian geometry with etale homotopy types

Alexander Schmidt, Jakob Stix

arxiv:1504.01068 v2 · 2015-04-04 · math.NT · math.AG · 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{6HKDPOCXKLQUBGY32G7LPCBKLH}

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	2026-05-18T00:55:28.816977Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f1d437b85752e1409b1bd1beb7882a59d781fd15bdd93a8dec335c4386a02500

Aliases

arxiv: 1504.01068 · arxiv_version: 1504.01068v2 · doi: 10.48550/arxiv.1504.01068 · pith_short_12: 6HKDPOCXKLQU · pith_short_16: 6HKDPOCXKLQUBGY3 · pith_short_8: 6HKDPOCX

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/6HKDPOCXKLQUBGY32G7LPCBKLH \
  | 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: f1d437b85752e1409b1bd1beb7882a59d781fd15bdd93a8dec335c4386a02500

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d2b69b7a82edc78e37bb6d8a4a17ba7bb41c43121e35f48e6465192b3e371b74",
    "cross_cats_sorted": [
      "math.AG",
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2015-04-04T23:44:16Z",
    "title_canon_sha256": "726115772d29f88e089f5281b4bdbe8b37cdade588d8ede79187ffe3979810ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.01068",
    "kind": "arxiv",
    "version": 2
  }
}