Pith Number

pith:EAIJIMJK

pith:2022:EAIJIMJKANPM437OAWZASYFTVC

not attested not anchored not stored refs pending

Open vs Closed-ended questions in attitudinal surveys -- comparing, combining, and interpreting using natural language processing

Francisco Camara Pereira, Jo\~ao de Abreu e Silva, Vishnu Baburajan

arxiv:2205.01317 v1 · 2022-05-03 · econ.GN · cs.CL · cs.LG · q-fin.EC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EAIJIMJKANPM437OAWZASYFTVC}

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	2026-07-05T04:20:03.408122Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

201094312a035ece6fee05b20960b3a886f3fa838233c8f4663ccd0d7a969d3b

Aliases

arxiv: 2205.01317 · arxiv_version: 2205.01317v1 · doi: 10.48550/arxiv.2205.01317 · pith_short_12: EAIJIMJKANPM · pith_short_16: EAIJIMJKANPM437O · pith_short_8: EAIJIMJK

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/EAIJIMJKANPM437OAWZASYFTVC \
  | 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: 201094312a035ece6fee05b20960b3a886f3fa838233c8f4663ccd0d7a969d3b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f2fa11165772c4f6689a366fd4412905f495116217a523db72e2b3e743816b0",
    "cross_cats_sorted": [
      "cs.CL",
      "cs.LG",
      "q-fin.EC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "econ.GN",
    "submitted_at": "2022-05-03T06:01:03Z",
    "title_canon_sha256": "16fde6187e8ffd9d1b0c106641e5e092e80963b6575dbb5cd5dfaa10b347fc42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2205.01317",
    "kind": "arxiv",
    "version": 1
  }
}