Pith Number

pith:HDWQ6LSX

pith:2015:HDWQ6LSXKYY2H2S76GAKM2UOOT

not attested not anchored not stored refs pending

Mathematical Student Education - "listki" or dialog?

Alexander Kovaldji, Alexei Kanel-Belov

arxiv:1502.01893 v1 · 2015-02-06 · math.HO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HDWQ6LSXKYY2H2S76GAKM2UOOT}

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	2026-05-18T02:27:50.488557Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38ed0f2e575631a3ea5ff180a66a8e74d501b85fa3083f616735f0482b84fecd

Aliases

arxiv: 1502.01893 · arxiv_version: 1502.01893v1 · doi: 10.48550/arxiv.1502.01893 · pith_short_12: HDWQ6LSXKYY2 · pith_short_16: HDWQ6LSXKYY2H2S7 · pith_short_8: HDWQ6LSX

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/HDWQ6LSXKYY2H2S76GAKM2UOOT \
  | 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: 38ed0f2e575631a3ea5ff180a66a8e74d501b85fa3083f616735f0482b84fecd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb3a2b6c0deb37f8a16ecd574b5200e1ecdf6348e4a88814a45625f3687192d1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2015-02-06T14:21:29Z",
    "title_canon_sha256": "67e4510e55ccb1f1d6603a70f98d47ffdb2fb026ae84c3adf4d00b5287c4b912"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.01893",
    "kind": "arxiv",
    "version": 1
  }
}