Pith Number

pith:H3DFI4UK

pith:2017:H3DFI4UKK4ZC5NBRBDXQ7LETFF

not attested not anchored not stored refs pending

Conceptual Frameworks for Building Online Citizen Science Projects

John Darlington, Poonam Yadav

arxiv:1704.05084 v1 · 2017-04-17 · cs.CY · 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{H3DFI4UKK4ZC5NBRBDXQ7LETFF}

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	2026-05-18T00:46:08.654501Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ec654728a57322eb43108ef0fac932957771d90e19bd53c4f5f8a91011d024b

Aliases

arxiv: 1704.05084 · arxiv_version: 1704.05084v1 · doi: 10.48550/arxiv.1704.05084 · pith_short_12: H3DFI4UKK4ZC · pith_short_16: H3DFI4UKK4ZC5NBR · pith_short_8: H3DFI4UK

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/H3DFI4UKK4ZC5NBRBDXQ7LETFF \
  | 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: 3ec654728a57322eb43108ef0fac932957771d90e19bd53c4f5f8a91011d024b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa34a6377e1872857e3900b698d2d0a124a3264172c789f6c7fdf63810e1e17d",
    "cross_cats_sorted": [
      "cs.HC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2017-04-17T18:20:54Z",
    "title_canon_sha256": "36e634c58946f5965e4308e316fea40ecb3f6f59126344ba4215b4fff785f6d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.05084",
    "kind": "arxiv",
    "version": 1
  }
}