Pith Number

pith:MXIOGV4G

pith:2024:MXIOGV4GJJTJ5FNR2XOFCCK5BY

not attested not anchored not stored refs pending

User Perception of CAPTCHAs: A Comparative Study between University and Internet Users

Arun Reddy, Yuan Cheng

arxiv:2405.18547 v1 · 2024-05-28 · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MXIOGV4GJJTJ5FNR2XOFCCK5BY}

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	2026-07-05T08:24:27.154896Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

65d0e357864a669e95b1d5dc51095d0e13262461007496874e5f3d0251c2c501

Aliases

arxiv: 2405.18547 · arxiv_version: 2405.18547v1 · doi: 10.48550/arxiv.2405.18547 · pith_short_12: MXIOGV4GJJTJ · pith_short_16: MXIOGV4GJJTJ5FNR · pith_short_8: MXIOGV4G

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/MXIOGV4GJJTJ5FNR2XOFCCK5BY \
  | 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: 65d0e357864a669e95b1d5dc51095d0e13262461007496874e5f3d0251c2c501

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "477dc91781ddb1bdbef504404a1ea2be02ff06e9ac32db498bc6f8ff35ca28cf",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2024-05-28T19:28:04Z",
    "title_canon_sha256": "ec918806e2136f0d057e30ac896527fb5f492b1ae2838f15e6cdd3e8e2117371"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2405.18547",
    "kind": "arxiv",
    "version": 1
  }
}