Pith Number

pith:7V7R7VEC

pith:2018:7V7R7VECEGY5FKRRVB2ZYRBM6R

not attested not anchored not stored refs pending

When Scientists Become Social Scientists: How Citizen Science Projects Learn About Volunteers

Peter T. Darch

arxiv:1802.00362 v1 · 2018-02-01 · astro-ph.IM · astro-ph.GA · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7V7R7VECEGY5FKRRVB2ZYRBM6R}

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	2026-05-18T00:24:36.171833Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd7f1fd48221b1d2aa31a8759c442cf4672adc099e30b04f94125f08edd01981

Aliases

arxiv: 1802.00362 · arxiv_version: 1802.00362v1 · doi: 10.48550/arxiv.1802.00362 · pith_short_12: 7V7R7VECEGY5 · pith_short_16: 7V7R7VECEGY5FKRR · pith_short_8: 7V7R7VEC

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/7V7R7VECEGY5FKRRVB2ZYRBM6R \
  | 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: fd7f1fd48221b1d2aa31a8759c442cf4672adc099e30b04f94125f08edd01981

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca654c65fd2d273a8dd9559885f9efc8c3618fe39c9f2a82bb36b42047e8b58e",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "cs.CY"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-02-01T15:54:51Z",
    "title_canon_sha256": "9b7f5bc0908487d76c58721fe9bf07b7b9cb58b3b5cc96c22bcd860ed82d718f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.00362",
    "kind": "arxiv",
    "version": 1
  }
}