Pith Number

pith:6PHXVC4Q

pith:1995:6PHXVC4Q6TXUAOCZCQT2LFVV2N

not attested not anchored not stored refs pending

Adding a lot of Cohen reals by adding a few

Moti Gitik

arxiv:math/9507209 v1 · 1995-07-05 · 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{6PHXVC4Q6TXUAOCZCQT2LFVV2N}

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	2026-05-18T01:05:48.523487Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3cf7a8b90f4ef4038591427a596b5d341d4f78f590dbcb8bccb01fa68c853c0

Aliases

arxiv: math/9507209 · arxiv_version: math/9507209v1 · doi: 10.48550/arxiv.math/9507209 · pith_short_12: 6PHXVC4Q6TXU · pith_short_16: 6PHXVC4Q6TXUAOCZ · pith_short_8: 6PHXVC4Q

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/6PHXVC4Q6TXUAOCZCQT2LFVV2N \
  | 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: f3cf7a8b90f4ef4038591427a596b5d341d4f78f590dbcb8bccb01fa68c853c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86033412eab1ca428206fe76f17b84530ba14914bbcb766ab54b81edd2607b7e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.LO",
    "submitted_at": "1995-07-05T00:00:00Z",
    "title_canon_sha256": "2f36f6026dbdc590e7b46cb5644368b307870d6f19edf25f3b5e29aa981a8d96"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9507209",
    "kind": "arxiv",
    "version": 1
  }
}