Pith Number

pith:7JZTBVVF

pith:2019:7JZTBVVFZW4F7VSNYGY2Y4BFK2

not attested not anchored not stored refs pending

Cross-study Reliability of the Open Card Sorting Method

Christos Katsanos, Ioannis Stamelos, Lefteris Angelis, Nikolaos Avouris, Nikolaos Tselios, Stavros Demetriadis

arxiv:1903.08644 v1 · 2019-03-19 · cs.HC · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7JZTBVVFZW4F7VSNYGY2Y4BFK2}

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	2026-05-17T23:50:44.302640Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa7330d6a5cdb85fd64dc1b1ac702556a7097bcc7b8351df63e5c64cc712c78a

Aliases

arxiv: 1903.08644 · arxiv_version: 1903.08644v1 · doi: 10.48550/arxiv.1903.08644 · pith_short_12: 7JZTBVVFZW4F · pith_short_16: 7JZTBVVFZW4F7VSN · pith_short_8: 7JZTBVVF

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/7JZTBVVFZW4F7VSNYGY2Y4BFK2 \
  | 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: fa7330d6a5cdb85fd64dc1b1ac702556a7097bcc7b8351df63e5c64cc712c78a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9498041b3a22871b824d408950d88708c9223ce7ade73494f68e16dd1fe1c229",
    "cross_cats_sorted": [
      "cs.CY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2019-03-19T20:17:49Z",
    "title_canon_sha256": "ba0e7b5e966c0ebe19114ed8bf6dddad375382af97f22d4c6b86133b407bde1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.08644",
    "kind": "arxiv",
    "version": 1
  }
}