Pith Number

pith:XJCIRK2A

pith:2016:XJCIRK2A7AURJOGYNZYSFG35BT

not attested not anchored not stored refs pending

Randomness via infinite computation and effective descriptive set theory

Merlin Carl, Philipp Schlicht

arxiv:1612.02982 v1 · 2016-12-09 · math.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{XJCIRK2A7AURJOGYNZYSFG35BT}

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	2026-05-18T00:55:27.800744Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba4488ab40f82914b8d86e71229b7d0cec697b863c110111238c172fe4be6758

Aliases

arxiv: 1612.02982 · arxiv_version: 1612.02982v1 · doi: 10.48550/arxiv.1612.02982 · pith_short_12: XJCIRK2A7AUR · pith_short_16: XJCIRK2A7AURJOGY · pith_short_8: XJCIRK2A

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/XJCIRK2A7AURJOGYNZYSFG35BT \
  | 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: ba4488ab40f82914b8d86e71229b7d0cec697b863c110111238c172fe4be6758

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e829da90756c25f619da0cde395d08246a653e98fd47bb1735ea36dcbb82bb13",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2016-12-09T11:44:01Z",
    "title_canon_sha256": "159aa55c8848169c7c4177ec3c42b2b9f0d988047ce8d76a5b6a513e38d551af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.02982",
    "kind": "arxiv",
    "version": 1
  }
}