Pith Number

pith:UP4OG7EA

pith:1995:UP4OG7EAMCMIZ5CVKCT47QPWO6

not attested not anchored not stored refs pending

Decomposing with smooth sets

Juris Stepr\=ans

arxiv:math/9501204 v1 · 1995-01-07 · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UP4OG7EAMCMIZ5CVKCT47QPWO6}

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	2026-05-18T01:05:50.684348Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3f8e37c8060988cf45550a7cfc1f677a6b5f718b43d9258254a2ef40a909da1

Aliases

arxiv: math/9501204 · arxiv_version: math/9501204v1 · doi: 10.48550/arxiv.math/9501204 · pith_short_12: UP4OG7EAMCMI · pith_short_16: UP4OG7EAMCMIZ5CV · pith_short_8: UP4OG7EA

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/UP4OG7EAMCMIZ5CVKCT47QPWO6 \
  | 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: a3f8e37c8060988cf45550a7cfc1f677a6b5f718b43d9258254a2ef40a909da1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9354656baa265ee9d4aefea58a5438a5e8abe5a05e3a25edd65eb6248eb4ca0d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.LO",
    "submitted_at": "1995-01-07T00:00:00Z",
    "title_canon_sha256": "db18d159d95592c7e1fffbb91ff320125cfdb1a54aac8a965c04075866e26ba2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9501204",
    "kind": "arxiv",
    "version": 1
  }
}