Pith Number

pith:MTTEMGQJ

pith:2015:MTTEMGQJND77DXX4UCMBP2JKAD

not attested not anchored not stored refs pending

Randomness for computable measures and initial segment complexity

Christopher P. Porter, Rupert H\"olzl

arxiv:1510.07202 v5 · 2015-10-25 · 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{MTTEMGQJND77DXX4UCMBP2JKAD}

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	2026-05-18T00:59:58.983810Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64e6461a0968fff1defca09817e92a00fe571278cdf46c92a0f5ac583cdf0091

Aliases

arxiv: 1510.07202 · arxiv_version: 1510.07202v5 · doi: 10.48550/arxiv.1510.07202 · pith_short_12: MTTEMGQJND77 · pith_short_16: MTTEMGQJND77DXX4 · pith_short_8: MTTEMGQJ

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/MTTEMGQJND77DXX4UCMBP2JKAD \
  | 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: 64e6461a0968fff1defca09817e92a00fe571278cdf46c92a0f5ac583cdf0091

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e80b19920fce343064ed48faf34199988493f5f15a1310aaf27add75c0a6cb0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2015-10-25T03:02:03Z",
    "title_canon_sha256": "015b214499c48b0aa51fc10797133b0ddadc25e6c78a8f3192eb8438e646658c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.07202",
    "kind": "arxiv",
    "version": 5
  }
}