Pith Number

pith:LJ7KPNKC

pith:2015:LJ7KPNKCDR5UES4EB4YFKDJA5Y

not attested not anchored not stored refs pending

Computable functors and effective interpretability

Alexander Melnikov, Antonio Montalb\'an, Matthew Harrison-Trainor, Russell Miller

arxiv:1506.02737 v1 · 2015-06-09 · 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{LJ7KPNKCDR5UES4EB4YFKDJA5Y}

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	2026-05-18T00:24:02.511390Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a7ea7b5421c7b424b840f30550d20ee366382ebbe23ed28b76a676455a87361

Aliases

arxiv: 1506.02737 · arxiv_version: 1506.02737v1 · doi: 10.48550/arxiv.1506.02737 · pith_short_12: LJ7KPNKCDR5U · pith_short_16: LJ7KPNKCDR5UES4E · pith_short_8: LJ7KPNKC

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/LJ7KPNKCDR5UES4EB4YFKDJA5Y \
  | 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: 5a7ea7b5421c7b424b840f30550d20ee366382ebbe23ed28b76a676455a87361

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f7364c47aec4ab83b9d836db3456984958252065158b13b2b790f14ddec0bed",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2015-06-09T00:50:01Z",
    "title_canon_sha256": "743dbdcac932a4d7528d3abddd5afbfa84d70a6f0e4da6bc160a8d7ccc96fcd6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.02737",
    "kind": "arxiv",
    "version": 1
  }
}