Pith Number

pith:ROM62IQF

pith:2017:ROM62IQFXOTDKUV7GOA327YAL4

not attested not anchored not stored refs pending

The Bristol Model: an abyss called a Cohen real

Asaf Karagila

arxiv:1704.06939 v4 · 2017-04-23 · 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{ROM62IQFXOTDKUV7GOA327YAL4}

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	2026-05-17T23:59:39.715764Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8b99ed2205bba63552bf3381bd7f005f25f65372281dab73355c160784d1c09e

Aliases

arxiv: 1704.06939 · arxiv_version: 1704.06939v4 · doi: 10.48550/arxiv.1704.06939 · pith_short_12: ROM62IQFXOTD · pith_short_16: ROM62IQFXOTDKUV7 · pith_short_8: ROM62IQF

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/ROM62IQFXOTDKUV7GOA327YAL4 \
  | 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: 8b99ed2205bba63552bf3381bd7f005f25f65372281dab73355c160784d1c09e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41e5b67bc05ec8e6b45ddaddc4cb2b7e5ef6ec8a8a7f52a907adf90ffabcd4e7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2017-04-23T15:29:16Z",
    "title_canon_sha256": "a6c56cf4bbbcfe188bee40f41f14c2139b9073dea73eb8abf35a9e4f4363bf47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.06939",
    "kind": "arxiv",
    "version": 4
  }
}