Pith Number

pith:HYH6EP3S

pith:2019:HYH6EP3S3NUYVAAKLNIAVSB7XA

not attested not anchored not stored refs pending

The Unexpected Unexpected and the Expected Unexpected: How People's Conception of the Unexpected is Not That Unexpected

Kathleen Campbell, Mark T Keane, Molly S Quinn

arxiv:1905.08063 v1 · 2019-05-17 · cs.CL · cs.AI · cs.HC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HYH6EP3S3NUYVAAKLNIAVSB7XA}

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	2026-07-05T00:04:42.146391Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e0fe23f72db698a800a5b500ac83fb80277ce4ef3de9f2f06ff135959a36791

Aliases

arxiv: 1905.08063 · arxiv_version: 1905.08063v1 · doi: 10.48550/arxiv.1905.08063 · pith_short_12: HYH6EP3S3NUY · pith_short_16: HYH6EP3S3NUYVAAK · pith_short_8: HYH6EP3S

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/HYH6EP3S3NUYVAAKLNIAVSB7XA \
  | 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: 3e0fe23f72db698a800a5b500ac83fb80277ce4ef3de9f2f06ff135959a36791

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d4c3310041948b158e988185bee433e86e2d78ed7e0b7b402a524304b09e19b",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.HC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-05-17T10:14:07Z",
    "title_canon_sha256": "b277d441a6428c248e2b94398e17760f284640c361e9567c93dc8cb6b4aa04f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.08063",
    "kind": "arxiv",
    "version": 1
  }
}