Pith Number

pith:IFTD3Y7K

pith:2017:IFTD3Y7KL4S4JTRPACTTHQ7FSO

not attested not anchored not stored refs pending

Research Activity Classification based on Time Series Bibliometrics

Katsuji Matsumura, Takahiro Kawamura, Yasuhiro Yamashita

arxiv:1708.01387 v1 · 2017-08-04 · 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{IFTD3Y7KL4S4JTRPACTTHQ7FSO}

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	2026-05-18T00:38:37.529297Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41663de3ea5f25c4ce2f00a733c3e593b9956af1d267c5ec6cf9dedeea852b72

Aliases

arxiv: 1708.01387 · arxiv_version: 1708.01387v1 · doi: 10.48550/arxiv.1708.01387 · pith_short_12: IFTD3Y7KL4S4 · pith_short_16: IFTD3Y7KL4S4JTRP · pith_short_8: IFTD3Y7K

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/IFTD3Y7KL4S4JTRPACTTHQ7FSO \
  | 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: 41663de3ea5f25c4ce2f00a733c3e593b9956af1d267c5ec6cf9dedeea852b72

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bbedd3af0fc76f648138736dfd04fdbb2ae7a03c5560773caace17c8a10b2598",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2017-08-04T06:03:03Z",
    "title_canon_sha256": "3f7d39db853014e82b0e3ed1371ac409d584fc6fa858bc1be0162ffe126206af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.01387",
    "kind": "arxiv",
    "version": 1
  }
}