Pith Number

pith:SV5UGKIP

pith:2017:SV5UGKIP3LGJZEYI2YCEN2JR6X

not attested not anchored not stored refs pending

Derivatives of normal functions and omega-models

Toshiyasu Arai

arxiv:1704.08790 v1 · 2017-04-28 · 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{SV5UGKIP3LGJZEYI2YCEN2JR6X}

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	2026-05-18T00:45:25.274123Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

957b43290fdacc9c9308d60446e931f5dcc8594269f8271101b25f4c1a855087

Aliases

arxiv: 1704.08790 · arxiv_version: 1704.08790v1 · doi: 10.48550/arxiv.1704.08790 · pith_short_12: SV5UGKIP3LGJ · pith_short_16: SV5UGKIP3LGJZEYI · pith_short_8: SV5UGKIP

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/SV5UGKIP3LGJZEYI2YCEN2JR6X \
  | 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: 957b43290fdacc9c9308d60446e931f5dcc8594269f8271101b25f4c1a855087

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc07024b18da307a0d88792229d194f0ce1df199a3709df040aea17bdae0d147",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2017-04-28T02:26:49Z",
    "title_canon_sha256": "8abebdc7388b30515b1af4aaa8b534f29df65ca72bca638078c1a0ae290e51a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.08790",
    "kind": "arxiv",
    "version": 1
  }
}