Pith Number

pith:7KJ32RVW

pith:2018:7KJ32RVWOHRUKTLM5QEUOETUZ2

not attested not anchored not stored refs pending

How to identify the roots of broad research topics and fields? The introduction of RPYS sampling using the example of climate change research

Andreas Thor, Lutz Bornmann, Robin Haunschild, Werner Marx

arxiv:1807.04673 v1 · 2018-07-12 · 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{7KJ32RVWOHRUKTLM5QEUOETUZ2}

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	2026-05-17T23:48:40.341594Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa93bd46b671e3454d6cec09471274cebb583be597d70f966d31d85205041c2d

Aliases

arxiv: 1807.04673 · arxiv_version: 1807.04673v1 · doi: 10.48550/arxiv.1807.04673 · pith_short_12: 7KJ32RVWOHRU · pith_short_16: 7KJ32RVWOHRUKTLM · pith_short_8: 7KJ32RVW

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/7KJ32RVWOHRUKTLM5QEUOETUZ2 \
  | 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: fa93bd46b671e3454d6cec09471274cebb583be597d70f966d31d85205041c2d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8721b8ee613d499e4710440b8e02da20db451771034b90fb2aa8902f4992e58",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2018-07-12T15:27:51Z",
    "title_canon_sha256": "815d6d24edcba3ca364cdeb2b2e3e87ba51a2c36e259982b7cd3a0f626497ee5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.04673",
    "kind": "arxiv",
    "version": 1
  }
}