Pith Number

pith:4ND4IBGQ

pith:2018:4ND4IBGQVGGFJ7D43A237NB2YR

not attested not anchored not stored refs pending

On the mathematics of the free-choice paradigm

Kristopher Tapp, Peter Selinger

arxiv:1808.06961 v1 · 2018-08-19 · stat.OT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4ND4IBGQVGGFJ7D43A237NB2YR}

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	2026-05-18T00:07:38.542797Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e347c404d0a98c54fc7cd835bfb43ac46bdc8f4a5cd49f6a9c3ed406da2fcdf1

Aliases

arxiv: 1808.06961 · arxiv_version: 1808.06961v1 · doi: 10.48550/arxiv.1808.06961 · pith_short_12: 4ND4IBGQVGGF · pith_short_16: 4ND4IBGQVGGFJ7D4 · pith_short_8: 4ND4IBGQ

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/4ND4IBGQVGGFJ7D43A237NB2YR \
  | 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: e347c404d0a98c54fc7cd835bfb43ac46bdc8f4a5cd49f6a9c3ed406da2fcdf1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39178ae236f4d3d3faab67758e72404bcd031137113c7d241de0cebdacda86e1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.OT",
    "submitted_at": "2018-08-19T10:09:54Z",
    "title_canon_sha256": "8f089cd957949824d077fa197aadb42de6790c0f7f31bdfaf3a036e32a436e87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.06961",
    "kind": "arxiv",
    "version": 1
  }
}