Pith Number

pith:7PPSD2CY

pith:2019:7PPSD2CYKK76LZK7F6QZR4LPRW

not attested not anchored not stored refs pending

Abstract I/O Specification

Amin Timany, Bart Jacobs, Willem Penninckx

arxiv:1901.10541 v1 · 2019-01-29 · cs.LO · cs.PL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7PPSD2CYKK76LZK7F6QZR4LPRW}

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	2026-05-17T23:55:06.706464Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbdf21e85852bfe5e55f2fa198f16f8d9429d18137017dc053dc3ed8fee343a1

Aliases

arxiv: 1901.10541 · arxiv_version: 1901.10541v1 · doi: 10.48550/arxiv.1901.10541 · pith_short_12: 7PPSD2CYKK76 · pith_short_16: 7PPSD2CYKK76LZK7 · pith_short_8: 7PPSD2CY

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/7PPSD2CYKK76LZK7F6QZR4LPRW \
  | 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: fbdf21e85852bfe5e55f2fa198f16f8d9429d18137017dc053dc3ed8fee343a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9b182bf8d1662b6710cad6e12656d2c72316138a2a84f1fe18a18a3587a6279",
    "cross_cats_sorted": [
      "cs.PL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2019-01-29T20:53:02Z",
    "title_canon_sha256": "25f1c1b8f43e7521ffd130dd8ea3f937504ed62215bca5197d37f1c8bb5cc9fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.10541",
    "kind": "arxiv",
    "version": 1
  }
}