Pith Number

pith:UCWR3U2Z

pith:2021:UCWR3U2Z5R6MZWC4QIYUVSQRJO

not attested not anchored not stored refs pending

Towards Collaborative Mobile Crowdsourcing

Aymen Hamrouni, Hakim Ghazzai, Turki Alelyani, Yehia Massoud

arxiv:2104.05626 v1 · 2021-04-12 · cs.SI · 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{UCWR3U2Z5R6MZWC4QIYUVSQRJO}

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	2026-07-05T02:31:14.718203Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0ad1dd359ec7cccd85c82314aca114b9c0f4e282fe1cad4c7735295d596091d

Aliases

arxiv: 2104.05626 · arxiv_version: 2104.05626v1 · doi: 10.48550/arxiv.2104.05626 · pith_short_12: UCWR3U2Z5R6M · pith_short_16: UCWR3U2Z5R6MZWC4 · pith_short_8: UCWR3U2Z

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/UCWR3U2Z5R6MZWC4QIYUVSQRJO \
  | 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: a0ad1dd359ec7cccd85c82314aca114b9c0f4e282fe1cad4c7735295d596091d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0115d6806a99caadfe8b149eb33fcb060b3b1a01716917bc5e2bbbf8f2bd6a4a",
    "cross_cats_sorted": [
      "cs.SE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2021-04-12T16:48:09Z",
    "title_canon_sha256": "d0192346037fb4b5f2d55c2be37adf409c4cbfdd39dd64d5850c43d6c6556b4a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.05626",
    "kind": "arxiv",
    "version": 1
  }
}