Pith Number

pith:62RP2L3T

pith:2018:62RP2L3TEZSTQ2LRLPVWUFN5DK

not attested not anchored not stored refs pending

Topic Modelling of Empirical Text Corpora: Validity, Reliability, and Reproducibility in Comparison to Semantic Maps

Loet Leydesdorff, Tobias Hecking

arxiv:1806.01045 v1 · 2018-06-04 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{62RP2L3TEZSTQ2LRLPVWUFN5DK}

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.

Cited by

1 paper in Pith

Not All Bugs Are the Same: Understanding, Characterizing, and Classifying the Root Cause of Bugs

Receipt and verification

First computed	2026-05-18T00:14:17.625195Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6a2fd2f7326653869715beb6a15bd1a8f8c8b8239c01edc6a7563ccb4f4ccf6

Aliases

arxiv: 1806.01045 · arxiv_version: 1806.01045v1 · doi: 10.48550/arxiv.1806.01045 · pith_short_12: 62RP2L3TEZST · pith_short_16: 62RP2L3TEZSTQ2LR · pith_short_8: 62RP2L3T

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/62RP2L3TEZSTQ2LRLPVWUFN5DK \
  | 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: f6a2fd2f7326653869715beb6a15bd1a8f8c8b8239c01edc6a7563ccb4f4ccf6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d94e9efe85d715665e67413dea6df1c77d2c271b86b65372bf6aeafc29d50f8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-06-04T11:03:11Z",
    "title_canon_sha256": "1f4abfad335f11a26f2d0c76c80fc9af8c49df954bc142ae6f916c0c6af1b8ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.01045",
    "kind": "arxiv",
    "version": 1
  }
}