Pith Number

pith:JUMPR4RC

pith:2026:JUMPR4RCVNABS2LVMCTAUPDVYK

not attested not anchored not stored refs pending

Declining Modularity of Intellectual Bases During the Emergence of Research Areas

Kazuki Nakajima, Masaki Aida, Yuya Sasaki

arxiv:2608.16602 v1 · 2026-08-17 · physics.soc-ph · cs.DL · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JUMPR4RCVNABS2LVMCTAUPDVYK}

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	2026-08-18T02:18:24.500277Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4d18f8f222ab4019697560a60a3c75c297ca7ca55fb292439c1bcdbf26f30770

Aliases

arxiv: 2608.16602 · arxiv_version: 2608.16602v1 · doi: 10.48550/arxiv.2608.16602 · pith_short_12: JUMPR4RCVNAB · pith_short_16: JUMPR4RCVNABS2LV · pith_short_8: JUMPR4RC

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/JUMPR4RCVNABS2LVMCTAUPDVYK \
  | 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: 4d18f8f222ab4019697560a60a3c75c297ca7ca55fb292439c1bcdbf26f30770

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48425aa58049c324fabc87b68426666fa596d3618972ffcb559b831ec953f5e6",
    "cross_cats_sorted": [
      "cs.DL",
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2026-08-17T13:59:21Z",
    "title_canon_sha256": "0c78d5801099d76786564be5a1dd3f533b6b6ed0acc3dc269af3d6b0f12095b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.16602",
    "kind": "arxiv",
    "version": 1
  }
}