Pith Number

pith:YOY6EZ73

pith:2016:YOY6EZ73WVT4M3BBOKFEREZJ4D

not attested not anchored not stored refs pending

Computability and Analysis, a Historical Approach

Vasco Brattka

arxiv:1602.07509 v2 · 2016-02-24 · math.LO · 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{YOY6EZ73WVT4M3BBOKFEREZJ4D}

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	2026-05-18T01:11:17.587585Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3b1e267fbb567c66c21728a489329e0cea98e6121bd92f4a0d4c8093da8c839

Aliases

arxiv: 1602.07509 · arxiv_version: 1602.07509v2 · doi: 10.48550/arxiv.1602.07509 · pith_short_12: YOY6EZ73WVT4 · pith_short_16: YOY6EZ73WVT4M3BB · pith_short_8: YOY6EZ73

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/YOY6EZ73WVT4M3BBOKFEREZJ4D \
  | 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: c3b1e267fbb567c66c21728a489329e0cea98e6121bd92f4a0d4c8093da8c839

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c74c51d79253cef15d476254cf33dbac5de26963df9ed1c32718eaff29f1b015",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2016-02-24T14:00:45Z",
    "title_canon_sha256": "dd1009f091ec21be381be7eacb76f833843a04e1b736bd551a647caf745845ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.07509",
    "kind": "arxiv",
    "version": 2
  }
}