Pith Number

pith:B5B4D4K6

pith:2017:B5B4D4K6DJBX5MNSHP3KO6RSSA

not attested not anchored not stored refs pending

Intensional Constructed Numbers: Towards Formalizing the Notion of Algorithm

Fritz M\"uller

arxiv:1709.08533 v1 · 2017-09-25 · 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{B5B4D4K6DJBX5MNSHP3KO6RSSA}

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	2026-05-18T00:34:25.367514Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f43c1f15e1a437eb1b23bf6a77a3290234ff7917001a9e43fb4a6fcadf6e7c7

Aliases

arxiv: 1709.08533 · arxiv_version: 1709.08533v1 · doi: 10.48550/arxiv.1709.08533 · pith_short_12: B5B4D4K6DJBX · pith_short_16: B5B4D4K6DJBX5MNS · pith_short_8: B5B4D4K6

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/B5B4D4K6DJBX5MNSHP3KO6RSSA \
  | 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: 0f43c1f15e1a437eb1b23bf6a77a3290234ff7917001a9e43fb4a6fcadf6e7c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64d4f44df5199ec64d7ddbdded13607235e4efffd21421b61d453a35839430a0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2017-09-25T15:01:01Z",
    "title_canon_sha256": "ac83851a16d04571521c328ab3face3936840bcd235072baa22dfb7ad1f65008"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.08533",
    "kind": "arxiv",
    "version": 1
  }
}