Pith Number

pith:SMQED7GK

pith:2016:SMQED7GKVTS3VM5OPQDLLAMOPO

not attested not anchored not stored refs pending

Prolongation of Tanaka structures: an alternative approach

Dmitri V. Alekseevsky, Liana David

arxiv:1603.00700 v2 · 2016-03-02 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SMQED7GKVTS3VM5OPQDLLAMOPO}

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	2026-05-18T01:08:28.795096Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

932041fccaace5bab3ae7c06b5818e7bb8b2f30e851c4c2693953a5ca5aa337b

Aliases

arxiv: 1603.00700 · arxiv_version: 1603.00700v2 · doi: 10.48550/arxiv.1603.00700 · pith_short_12: SMQED7GKVTS3 · pith_short_16: SMQED7GKVTS3VM5O · pith_short_8: SMQED7GK

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/SMQED7GKVTS3VM5OPQDLLAMOPO \
  | 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: 932041fccaace5bab3ae7c06b5818e7bb8b2f30e851c4c2693953a5ca5aa337b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99b8514fc8c4e823731c837891a92a9a41bbb8b99daf4c6e5ceec9ff47290784",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2016-03-02T13:26:59Z",
    "title_canon_sha256": "95bbf5ef597c5094e78cd84c63794cb2b176172cf3850147a75686b2a38d1af7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.00700",
    "kind": "arxiv",
    "version": 2
  }
}