Pith Number

pith:H3HHIEPS

pith:2019:H3HHIEPS2H4Z4QU4PLZ4URGP4E

not attested not anchored not stored refs pending

Quantitative Expressiveness of Instruction Sequence Classes for Computation on Single Bit Registers

Jan A. Bergstra

arxiv:1904.08722 v1 · 2019-04-18 · cs.PL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H3HHIEPS2H4Z4QU4PLZ4URGP4E}

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	2026-05-17T23:48:13.229200Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ece7411f2d1f99e429c7af3ca44cfe134658bc8e14e26388f57d645fb0a62a8

Aliases

arxiv: 1904.08722 · arxiv_version: 1904.08722v1 · doi: 10.48550/arxiv.1904.08722 · pith_short_12: H3HHIEPS2H4Z · pith_short_16: H3HHIEPS2H4Z4QU4 · pith_short_8: H3HHIEPS

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/H3HHIEPS2H4Z4QU4PLZ4URGP4E \
  | 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: 3ece7411f2d1f99e429c7af3ca44cfe134658bc8e14e26388f57d645fb0a62a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6fd049574915aeaf3a1f081dfac092aa18a4571a99c039b69e7eed778386cc4b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2019-04-18T12:20:55Z",
    "title_canon_sha256": "8821c9240f34942f2522a5545dc8ee00908e6f6fd2581fd99717da2e80dda9ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.08722",
    "kind": "arxiv",
    "version": 1
  }
}