Pith Number

pith:TAKNTPYC

pith:2019:TAKNTPYCC63FN2O6F7APZCI354

not attested not anchored not stored refs pending

A note on flatness of non separable tangent cone

Thibaut Le Gouic

arxiv:1906.11536 v1 · 2019-06-27 · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TAKNTPYCC63FN2O6F7APZCI354}

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	2026-05-17T23:42:04.535918Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9814d9bf0217b656e9de2fc0fc891bef3b68fc6188eee47052e4fb8378455ea0

Aliases

arxiv: 1906.11536 · arxiv_version: 1906.11536v1 · doi: 10.48550/arxiv.1906.11536 · pith_short_12: TAKNTPYCC63F · pith_short_16: TAKNTPYCC63FN2O6 · pith_short_8: TAKNTPYC

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/TAKNTPYCC63FN2O6F7APZCI354 \
  | 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: 9814d9bf0217b656e9de2fc0fc891bef3b68fc6188eee47052e4fb8378455ea0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b97e9e4527683fba8b049d7a04c90b478effd5ee90d6eb7236172338f7d97339",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2019-06-27T10:24:52Z",
    "title_canon_sha256": "6efbd42e4e2d645da68f7ed75ac20f1da1f0d2d66874234472f64dc584f59fb3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.11536",
    "kind": "arxiv",
    "version": 1
  }
}