Pith Number

pith:EDZB4MXV

pith:2019:EDZB4MXVLQ4VH57AEIXY4DFPYU

not attested not anchored not stored refs pending

Rewriting Abstract Structures: Materialization Explained Categorically

Andrea Corradini, Arend Rensink, Barbara K\"onig, Dennis Nolte, Tobias Heindel

arxiv:1902.04809 v1 · 2019-02-13 · 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{EDZB4MXVLQ4VH57AEIXY4DFPYU}

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	2026-05-17T23:54:05.862728Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20f21e32f55c3953f7e0222f8e0cafc5305f21ab7ac8d8f842e0eecd76b3495e

Aliases

arxiv: 1902.04809 · arxiv_version: 1902.04809v1 · doi: 10.48550/arxiv.1902.04809 · pith_short_12: EDZB4MXVLQ4V · pith_short_16: EDZB4MXVLQ4VH57A · pith_short_8: EDZB4MXV

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/EDZB4MXVLQ4VH57AEIXY4DFPYU \
  | 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: 20f21e32f55c3953f7e0222f8e0cafc5305f21ab7ac8d8f842e0eecd76b3495e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e13fff71f5b7f28a1088dca64e04bfa14ba44cd5d987a9d37a532d63a57ea13d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2019-02-13T09:41:49Z",
    "title_canon_sha256": "d372fce9b1725f51ec3c8894a429d7b7d0b429c6d8a900f7a5e45cf1a76f2ec2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.04809",
    "kind": "arxiv",
    "version": 1
  }
}