Pith Number

pith:AQTCIP4G

pith:2008:AQTCIP4G6JEHECTLEAPAF5TFQO

not attested not anchored not stored refs pending

A Rational Deconstruction of Landin's SECD Machine with the J Operator

Kevin Millikin, Olivier Danvy

arxiv:0811.3231 v2 · 2008-11-19 · cs.PL · 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{AQTCIP4G6JEHECTLEAPAF5TFQO}

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	2026-05-18T01:37:40.623620Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0426243f86f248720a6b201e02f66583aaf55375558f1c755ce9b2014ed71b55

Aliases

arxiv: 0811.3231 · arxiv_version: 0811.3231v2 · doi: 10.48550/arxiv.0811.3231 · pith_short_12: AQTCIP4G6JEH · pith_short_16: AQTCIP4G6JEHECTL · pith_short_8: AQTCIP4G

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/AQTCIP4G6JEHECTLEAPAF5TFQO \
  | 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: 0426243f86f248720a6b201e02f66583aaf55375558f1c755ce9b2014ed71b55

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "173d6780aa24c39742e5a600dc0f62e81b5bbd9ed1c3de63c39525a9bd3ff6bd",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2008-11-19T22:31:34Z",
    "title_canon_sha256": "c65c68b95ba5cfa1933d81669bc0b633fb1c10b3de6f47296764259c0d4a6e3c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.3231",
    "kind": "arxiv",
    "version": 2
  }
}