Pith Number

pith:WPIPR46Z

pith:2017:WPIPR46ZA2BKBWEMF6APORFDXZ

not attested not anchored not stored refs pending

The epsilon-delta game and the chess

Zolt\'an Kov\'acs

arxiv:1701.07335 v3 · 2017-01-23 · 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{WPIPR46ZA2BKBWEMF6APORFDXZ}

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	2026-05-17T23:43:43.538844Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3d0f8f3d90682a0d88c2f80f744a3be6d23577d7e166a49fffe7220247801dd

Aliases

arxiv: 1701.07335 · arxiv_version: 1701.07335v3 · doi: 10.48550/arxiv.1701.07335 · pith_short_12: WPIPR46ZA2BK · pith_short_16: WPIPR46ZA2BKBWEM · pith_short_8: WPIPR46Z

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/WPIPR46ZA2BKBWEMF6APORFDXZ \
  | 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: b3d0f8f3d90682a0d88c2f80f744a3be6d23577d7e166a49fffe7220247801dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a8706f739b9ad41ca9f59bb75554448b3620b4cda33965e7239c20d9342a22b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2017-01-23T19:13:22Z",
    "title_canon_sha256": "e5a0309b2848c19bc37e867e2d2aab9dfe0656321759922399ca1f1181ff01db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.07335",
    "kind": "arxiv",
    "version": 3
  }
}