Pith Number

pith:RRSNXF62

pith:2018:RRSNXF623WSFVNL6GQTSRP3GXO

not attested not anchored not stored refs pending

Recursion schemes, discrete differential equations and characterization of polynomial time computation

Arnaud Durand, Olivier Bournez, Sabrina Ouazzani

arxiv:1810.02241 v2 · 2018-10-04 · cs.LO · cs.CC · cs.DM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RRSNXF623WSFVNL6GQTSRP3GXO}

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	2026-05-18T00:04:00.254910Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c64db97dadda45ab57e342728bf66bba4a3c5164d070dd6f7915066e99d1270

Aliases

arxiv: 1810.02241 · arxiv_version: 1810.02241v2 · doi: 10.48550/arxiv.1810.02241 · pith_short_12: RRSNXF623WSF · pith_short_16: RRSNXF623WSFVNL6 · pith_short_8: RRSNXF62

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/RRSNXF623WSFVNL6GQTSRP3GXO \
  | 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: 8c64db97dadda45ab57e342728bf66bba4a3c5164d070dd6f7915066e99d1270

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1d2eeb29aed7bd650056faeeff1f0c1e689d78bf2d765c503900eeacf47b201",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2018-10-04T14:27:25Z",
    "title_canon_sha256": "f3467fc79f4975ed0a936852bad96369f011540c3cedcfddf1c535c5518290d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.02241",
    "kind": "arxiv",
    "version": 2
  }
}