Pith Number

pith:GDA6RHGU

pith:2007:GDA6RHGUIHIZIY55QPKYTK3J6L

not attested not anchored not stored refs pending

Interactive Small-Step Algorithms I: Axiomatization

Andreas Blass, Benjamin Rossman, Dean Rosenzweig, Yuri Gurevich

arxiv:0707.3782 v2 · 2007-07-25 · 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{GDA6RHGUIHIZIY55QPKYTK3J6L}

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	2026-05-18T01:37:42.675178Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

30c1e89cd441d19463bd83d589ab69f2e9e347a6ecda7bf85b3a9090eb094781

Aliases

arxiv: 0707.3782 · arxiv_version: 0707.3782v2 · doi: 10.48550/arxiv.0707.3782 · pith_short_12: GDA6RHGUIHIZ · pith_short_16: GDA6RHGUIHIZIY55 · pith_short_8: GDA6RHGU

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/GDA6RHGUIHIZIY55QPKYTK3J6L \
  | 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: 30c1e89cd441d19463bd83d589ab69f2e9e347a6ecda7bf85b3a9090eb094781

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ce80e206f8d39d190d04d83c4eb99495208471a80f7dd352ca13c99b75bd25e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cs.LO",
    "submitted_at": "2007-07-25T17:04:26Z",
    "title_canon_sha256": "46a09d1cecf12935e891fcd5cb10ea85f57af4424455a3800ad732962a83e2e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0707.3782",
    "kind": "arxiv",
    "version": 2
  }
}