Pith Number

pith:W77H7JZN

pith:2019:W77H7JZN7DVICK5ONGUKL2JEIT

not attested not anchored not stored refs pending

Challenges in Survey Research

Daniel Graziotin, Daniel M\'endez Fern\'andez, Marcos Kalinowski, Michael Felderer, Stefan Wagner

arxiv:1908.05899 v4 · 2019-08-16 · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W77H7JZN7DVICK5ONGUKL2JEIT}

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	2026-07-05T02:13:42.209390Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7fe7fa72df8ea812bae69a8a5e92444f12cb2ebe1ff4adef03ec97a06440aa0

Aliases

arxiv: 1908.05899 · arxiv_version: 1908.05899v4 · doi: 10.48550/arxiv.1908.05899 · pith_short_12: W77H7JZN7DVI · pith_short_16: W77H7JZN7DVICK5O · pith_short_8: W77H7JZN

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/W77H7JZN7DVICK5ONGUKL2JEIT \
  | 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: b7fe7fa72df8ea812bae69a8a5e92444f12cb2ebe1ff4adef03ec97a06440aa0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b650c1dd1c7178c2381a594910dff79a0be7187aca141e7410342a51b5706846",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2019-08-16T09:10:48Z",
    "title_canon_sha256": "8f02e687f3b4014be382a86839b68a4b2574ddc7125fdbe5ac438d17d76422d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.05899",
    "kind": "arxiv",
    "version": 4
  }
}