Pith Number

pith:MIPTL7IO

pith:2005:MIPTL7IO6NAJTJBTWDJPQOECG5

not attested not anchored not stored refs pending

A System of Interaction and Structure II: The Need for Deep Inference

Alwen Tiu

arxiv:cs/0512036 v2 · 2005-12-09 · cs.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{MIPTL7IO6NAJTJBTWDJPQOECG5}

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	2026-05-18T00:53:03.422952Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

621f35fd0ef34099a433b0d2f83882377103b03f725f01067b566f099650458e

Aliases

arxiv: cs/0512036 · arxiv_version: cs/0512036v2 · doi: 10.48550/arxiv.cs/0512036 · pith_short_12: MIPTL7IO6NAJ · pith_short_16: MIPTL7IO6NAJTJBT · pith_short_8: MIPTL7IO

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/MIPTL7IO6NAJTJBTWDJPQOECG5 \
  | 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: 621f35fd0ef34099a433b0d2f83882377103b03f725f01067b566f099650458e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9e5a5c391d10acc22e79f8034fe36a17af41b521b76fab9ad9e78b8d8e90cdb",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cs.LO",
    "submitted_at": "2005-12-09T16:36:54Z",
    "title_canon_sha256": "0d2c5d650908342eb925c1afe2aa719b575124f2d459c155ef9893287996bbac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0512036",
    "kind": "arxiv",
    "version": 2
  }
}