Pith Number

pith:QBTJP2YL

pith:2015:QBTJP2YLCPGK56GGEMMIS7V4PU

not attested not anchored not stored refs pending

Reduced powers of Souslin trees

Ari Meir Brodsky, Assaf Rinot

arxiv:1507.05651 v2 · 2015-07-20 · 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{QBTJP2YLCPGK56GGEMMIS7V4PU}

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	2026-05-17T23:59:54.165289Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

806697eb0b13ccaef8c62318897ebc7d3eca858e156d8607533b771d23d28371

Aliases

arxiv: 1507.05651 · arxiv_version: 1507.05651v2 · doi: 10.48550/arxiv.1507.05651 · pith_short_12: QBTJP2YLCPGK · pith_short_16: QBTJP2YLCPGK56GG · pith_short_8: QBTJP2YL

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/QBTJP2YLCPGK56GGEMMIS7V4PU \
  | 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: 806697eb0b13ccaef8c62318897ebc7d3eca858e156d8607533b771d23d28371

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3381cb770b454762d1f8d611e0c448e3bde129556e907329295fa6d18ef4098",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2015-07-20T20:53:28Z",
    "title_canon_sha256": "09ca7121d7f5a5e3e0f56aea040326ccc990931fa1bcb039f53a11a6835bec01"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.05651",
    "kind": "arxiv",
    "version": 2
  }
}