Pith Number

pith:XJDCBD66

pith:2019:XJDCBD66Q3UKGS7ANM4KCDSIZV

not attested not anchored not stored refs pending

Characterising Volunteers' Task Execution Patterns Across Projects on Multi-Project Citizen Science Platforms

Lesandro Ponciano, Thiago Emmanuel Pereira

arxiv:1908.01344 v3 · 2019-08-04 · 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{XJDCBD66Q3UKGS7ANM4KCDSIZV}

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	2026-07-05T00:10:54.134122Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba46208fde86e8a34be06b38a10e48cd65ff7db7883013d513b6cffdbdffeff4

Aliases

arxiv: 1908.01344 · arxiv_version: 1908.01344v3 · doi: 10.48550/arxiv.1908.01344 · pith_short_12: XJDCBD66Q3UK · pith_short_16: XJDCBD66Q3UKGS7A · pith_short_8: XJDCBD66

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/XJDCBD66Q3UKGS7ANM4KCDSIZV \
  | 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: ba46208fde86e8a34be06b38a10e48cd65ff7db7883013d513b6cffdbdffeff4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf22d5581be5986d7ab0cbc60115c5419dccb1ba1a023e2a5e7e4e4131c622af",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2019-08-04T14:00:49Z",
    "title_canon_sha256": "b5bcc58501cca374b7ea2d89c5ef37cc904e8702a4fae63bb6fa246c09ae32ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.01344",
    "kind": "arxiv",
    "version": 3
  }
}