Pith Number

pith:XKKJIFEN

pith:2016:XKKJIFENWMBA7K3SVTYKE2A5YA

not attested not anchored not stored refs pending

Science Learning via Participation in Online Citizen Science

Anita Greenhill, Brooke Simmons, Chris Lintott (Oxford Astrophysics), Gary Graham, (ICG Portsmouth) Eun Young Oh, Joe Cox (Portsmouth Business School), Karen Masters, Kate Holmes

arxiv:1601.05973 v2 · 2016-01-22 · astro-ph.IM · cs.CY · physics.ed-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{XKKJIFENWMBA7K3SVTYKE2A5YA}

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	2026-05-18T01:17:07.510303Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba9494148db3020fab72acf0a2681dc02b23d74ba2329d18661bc65db4df353b

Aliases

arxiv: 1601.05973 · arxiv_version: 1601.05973v2 · doi: 10.48550/arxiv.1601.05973 · pith_short_12: XKKJIFENWMBA · pith_short_16: XKKJIFENWMBA7K3S · pith_short_8: XKKJIFEN

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/XKKJIFENWMBA7K3SVTYKE2A5YA \
  | 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: ba9494148db3020fab72acf0a2681dc02b23d74ba2329d18661bc65db4df353b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "514b8333ba85b62c1ee2bb7be86bb3773803a53fded4dc69227bb5cefa1e4c35",
    "cross_cats_sorted": [
      "cs.CY",
      "physics.ed-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2016-01-22T12:23:10Z",
    "title_canon_sha256": "91997d671b92e6866341dbfbf4dda1d72965dd6b1d08d8f3c061dd6af035c0e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.05973",
    "kind": "arxiv",
    "version": 2
  }
}