Pith Number

pith:3SBF5QQH

pith:1995:3SBF5QQHWDSZFTPX7GBMP6RUVU

not attested not anchored not stored refs pending

The complexity of the reals in inner models of set theory

Boban Velickovic, W. Hugh Woodin

arxiv:math/9501203 v1 · 1995-01-02 · 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{3SBF5QQHWDSZFTPX7GBMP6RUVU}

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	2026-05-18T01:05:50.691041Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc825ec207b0e592cdf7f982c7fa34ad3efbc754126ec0541f45057a8df9160d

Aliases

arxiv: math/9501203 · arxiv_version: math/9501203v1 · doi: 10.48550/arxiv.math/9501203 · pith_short_12: 3SBF5QQHWDSZ · pith_short_16: 3SBF5QQHWDSZFTPX · pith_short_8: 3SBF5QQH

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/3SBF5QQHWDSZFTPX7GBMP6RUVU \
  | 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: dc825ec207b0e592cdf7f982c7fa34ad3efbc754126ec0541f45057a8df9160d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c443a04d667abdf3965c6dc2428993ab0106f3d5d1eea2d75de9136b35fafab1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.LO",
    "submitted_at": "1995-01-02T00:00:00Z",
    "title_canon_sha256": "0b009adc0d3c70111a7f228092e76765c764e8ca6086126612c331f901095fe5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9501203",
    "kind": "arxiv",
    "version": 1
  }
}