Pith Number

pith:7YOGJR2D

pith:2019:7YOGJR2D2AX6M5KLPCZMH5J4D6

not attested not anchored not stored refs pending

Delta -- new logic programming language and Delta-methodology for p-computable programs on Turing Complete Languages

Andrey Nechesov

arxiv:1907.07767 v1 · 2019-07-12 · 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{7YOGJR2D2AX6M5KLPCZMH5J4D6}

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	2026-05-17T23:40:16.388293Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe1c64c743d02fe6754b78b2c3f53c1fb2725b3a2610efcff22593c83bc36e7f

Aliases

arxiv: 1907.07767 · arxiv_version: 1907.07767v1 · doi: 10.48550/arxiv.1907.07767 · pith_short_12: 7YOGJR2D2AX6 · pith_short_16: 7YOGJR2D2AX6M5KL · pith_short_8: 7YOGJR2D

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/7YOGJR2D2AX6M5KLPCZMH5J4D6 \
  | 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: fe1c64c743d02fe6754b78b2c3f53c1fb2725b3a2610efcff22593c83bc36e7f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57fefe061aa740f3a74dc4511a89647983b3b9fbbc577b2341e9878116bfccd3",
    "cross_cats_sorted": [
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2019-07-12T12:18:50Z",
    "title_canon_sha256": "8cb7b54fc0d6538a4dd0aa76fca29910a805f761c9362e17530d0e9074b5827d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.07767",
    "kind": "arxiv",
    "version": 1
  }
}