Pith Number

pith:PFL66LSY

pith:2018:PFL66LSYASJXZU3E2GRXSW3TGQ

not attested not anchored not stored refs pending

Reproducibility and Pseudo-Determinism in Log-Space

Ofer Grossman, Yang P. Liu

arxiv:1803.04025 v1 · 2018-03-11 · cs.CC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PFL66LSYASJXZU3E2GRXSW3TGQ}

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	2026-05-18T00:21:05.589610Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7957ef2e5804937cd364d1a3795b733400e83ef0806b3bc745955a0bbb643c2a

Aliases

arxiv: 1803.04025 · arxiv_version: 1803.04025v1 · doi: 10.48550/arxiv.1803.04025 · pith_short_12: PFL66LSYASJX · pith_short_16: PFL66LSYASJXZU3E · pith_short_8: PFL66LSY

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/PFL66LSYASJXZU3E2GRXSW3TGQ \
  | 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: 7957ef2e5804937cd364d1a3795b733400e83ef0806b3bc745955a0bbb643c2a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2296ac3e56c383676cb2302ff7191788b1b323f458aae7207475fa4114456da0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2018-03-11T19:39:54Z",
    "title_canon_sha256": "9e2d8d65cf850904d7b28536854cec034935b78884a44e843b4fc2e56333580b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.04025",
    "kind": "arxiv",
    "version": 1
  }
}