Pith Number

pith:A2TNNSGT

pith:2009:A2TNNSGTWAJQCC7RG2GXCNSE27

not attested not anchored not stored refs pending

Orthogonality and domination in unstable theories

Alex Usvyatsov, Alf Onshuus

arxiv:0909.3753 v1 · 2009-09-21 · 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{A2TNNSGTWAJQCC7RG2GXCNSE27}

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	2026-05-18T04:28:28.352807Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

06a6d6c8d3b013010bf1368d713644d7e9a1f59ed2567427231b6c703b94c6e1

Aliases

arxiv: 0909.3753 · arxiv_version: 0909.3753v1 · doi: 10.48550/arxiv.0909.3753 · pith_short_12: A2TNNSGTWAJQ · pith_short_16: A2TNNSGTWAJQCC7R · pith_short_8: A2TNNSGT

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/A2TNNSGTWAJQCC7RG2GXCNSE27 \
  | 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: 06a6d6c8d3b013010bf1368d713644d7e9a1f59ed2567427231b6c703b94c6e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b8b8578069455ff8ba284487ba401065877d9eae0b8d8bde1eee93216cdd725",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2009-09-21T12:43:32Z",
    "title_canon_sha256": "c32e8889983994c42ca7551e55cb7146e193e4c72e75d111b881c6c5a218b423"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.3753",
    "kind": "arxiv",
    "version": 1
  }
}