Pith Number

pith:MYWC4UHO

pith:2011:MYWC4UHOIIEYKYUPN7MXTLBNXG

not attested not anchored not stored refs pending

Computability, G\"odel's Incompleteness Theorem, and an inherent limit on the predictability of evolution

Troy Day

arxiv:1110.2982 v1 · 2011-10-13 · q-bio.PE · cs.LO · 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{MYWC4UHOIIEYKYUPN7MXTLBNXG}

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	2026-05-18T04:11:06.495415Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

662c2e50ee420985628f6fd979ac2db99d3c90d4ae8fb1a756d60013cf4c0209

Aliases

arxiv: 1110.2982 · arxiv_version: 1110.2982v1 · doi: 10.48550/arxiv.1110.2982 · pith_short_12: MYWC4UHOIIEY · pith_short_16: MYWC4UHOIIEYKYUP · pith_short_8: MYWC4UHO

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/MYWC4UHOIIEYKYUPN7MXTLBNXG \
  | 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: 662c2e50ee420985628f6fd979ac2db99d3c90d4ae8fb1a756d60013cf4c0209

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ee8642438f45d8fdd880bb68d536e80826cd64f038383c5080e463a17f81cdc",
    "cross_cats_sorted": [
      "cs.LO",
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2011-10-13T15:43:28Z",
    "title_canon_sha256": "048a5c2512c33f30582f59a38b642eac2250b73efa083d2cb69b9c75b3f82d5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.2982",
    "kind": "arxiv",
    "version": 1
  }
}