Pith Number

pith:UHCKGMON

pith:2015:UHCKGMONWSNZS3AAQFADRNAWMM

not attested not anchored not stored refs pending

Modeling crowdsourcing as collective problem solving

Andrea Guazzini, Annalisa Nardi, Camillo Donati, Daniele Vilone, Zoran Levnajic

arxiv:1506.09155 v5 · 2015-06-30 · physics.soc-ph · cs.SI · physics.pop-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UHCKGMONWSNZS3AAQFADRNAWMM}

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	2026-05-18T01:17:55.503759Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1c4a331cdb49b996c00814038b416630abf2c0e815895fad664ca202dc1479e

Aliases

arxiv: 1506.09155 · arxiv_version: 1506.09155v5 · doi: 10.48550/arxiv.1506.09155 · pith_short_12: UHCKGMONWSNZ · pith_short_16: UHCKGMONWSNZS3AA · pith_short_8: UHCKGMON

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/UHCKGMONWSNZS3AAQFADRNAWMM \
  | 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: a1c4a331cdb49b996c00814038b416630abf2c0e815895fad664ca202dc1479e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "208610b092906030bc42afe26cc412b1a8ec3456ffaa5cd4912952b94bad18fe",
    "cross_cats_sorted": [
      "cs.SI",
      "physics.pop-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2015-06-30T16:56:23Z",
    "title_canon_sha256": "61d143a4dcb7eb321f5d4865ab97e3436a68b23ee214771905042d0e77c31d21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.09155",
    "kind": "arxiv",
    "version": 5
  }
}