Pith Number

pith:KHCQIRTT

pith:2018:KHCQIRTTQBCSI6Y7I6CM4UHRTQ

not attested not anchored not stored refs pending

History Playground: A Tool for Discovering Temporal Trends in Massive Textual Corpora

Nello Cristianini, Thomas Lansdall-Welfare

arxiv:1806.01185 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{KHCQIRTTQBCSI6Y7I6CM4UHRTQ}

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	2026-05-18T00:14:17.161598Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

51c50446738045247b1f4784ce50f19c3527e814a07e29bfcf2d90e92db78e5c

Aliases

arxiv: 1806.01185 · arxiv_version: 1806.01185v1 · doi: 10.48550/arxiv.1806.01185 · pith_short_12: KHCQIRTTQBCS · pith_short_16: KHCQIRTTQBCSI6Y7 · pith_short_8: KHCQIRTT

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/KHCQIRTTQBCSI6Y7I6CM4UHRTQ \
  | 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: 51c50446738045247b1f4784ce50f19c3527e814a07e29bfcf2d90e92db78e5c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79a2a35c06c3bc71a498f9508a12910b17639f03264ed70f8c919e7ad63b242d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-06-04T16:30:03Z",
    "title_canon_sha256": "d758f867db2b6d391c8842dadc387040b4f0291b5bb6f3d95769d1d0c7ff4514"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.01185",
    "kind": "arxiv",
    "version": 1
  }
}