Pith Number

pith:NM23GYKW

pith:2020:NM23GYKWUS5W2YI7CDO2A22USJ

not attested not anchored not stored refs pending

Open Access uptake by universities worldwide

Nicolas Robinson-Garcia, Rodrigo Costas, Thed N. van Leeuwen

arxiv:2003.12273 v2 · 2020-03-27 · cs.DL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NM23GYKWUS5W2YI7CDO2A22USJ}

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	2026-07-05T01:07:40.486719Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b35b36156a4bb6d611f10dda06b54924ab77bf8a82ce93930c85abf52dec586

Aliases

arxiv: 2003.12273 · arxiv_version: 2003.12273v2 · doi: 10.48550/arxiv.2003.12273 · pith_short_12: NM23GYKWUS5W · pith_short_16: NM23GYKWUS5W2YI7 · pith_short_8: NM23GYKW

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/NM23GYKWUS5W2YI7CDO2A22USJ \
  | 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: 6b35b36156a4bb6d611f10dda06b54924ab77bf8a82ce93930c85abf52dec586

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "036367e655348aa9bf12d0ae4a1e841694a41adfe87ab1d0da68eaad6c757a24",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2020-03-27T08:19:22Z",
    "title_canon_sha256": "ec21bc0f17db91419f044dff179f0ecf8ab0a1015308528065dd5fe586a44e8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.12273",
    "kind": "arxiv",
    "version": 2
  }
}