Pith Number

pith:QJWUKPJ7

pith:2015:QJWUKPJ7XKLDDNAZAFAZJD2GI3

not attested not anchored not stored refs pending

Infinite games and chain conditions

Santi Spadaro

arxiv:1507.02134 v1 · 2015-07-08 · math.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QJWUKPJ7XKLDDNAZAFAZJD2GI3}

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	2026-05-18T01:37:08.553470Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

826d453d3fba9631b4190141948f4646ea0aef9006901810b1e058983f9cd13a

Aliases

arxiv: 1507.02134 · arxiv_version: 1507.02134v1 · doi: 10.48550/arxiv.1507.02134 · pith_short_12: QJWUKPJ7XKLD · pith_short_16: QJWUKPJ7XKLDDNAZ · pith_short_8: QJWUKPJ7

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/QJWUKPJ7XKLDDNAZAFAZJD2GI3 \
  | 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: 826d453d3fba9631b4190141948f4646ea0aef9006901810b1e058983f9cd13a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bccfeee9874e668d707e5a7bcc3a685970daeda2aae6adef1c3d91171481c9f4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2015-07-08T12:53:44Z",
    "title_canon_sha256": "030a1de51c6b5499c25b38b510070bf6ccbaab1d340caa0b014915dc0fbdc811"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.02134",
    "kind": "arxiv",
    "version": 1
  }
}