Pith Number

pith:DJJXO2BN

pith:2013:DJJXO2BNFZBWYHWN2HUDYODTTI

not attested not anchored not stored refs pending

The predictability of the Hirsch index evolution

Michael Schreiber

arxiv:1307.5964 v1 · 2013-07-23 · physics.soc-ph · 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{DJJXO2BNFZBWYHWN2HUDYODTTI}

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	2026-05-18T03:12:59.655460Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a5377682d2e436c1ecdd1e83c38739a2509a31e93ba1ecb746d35739ee45c40

Aliases

arxiv: 1307.5964 · arxiv_version: 1307.5964v1 · doi: 10.48550/arxiv.1307.5964 · pith_short_12: DJJXO2BNFZBW · pith_short_16: DJJXO2BNFZBWYHWN · pith_short_8: DJJXO2BN

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/DJJXO2BNFZBWYHWN2HUDYODTTI \
  | 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: 1a5377682d2e436c1ecdd1e83c38739a2509a31e93ba1ecb746d35739ee45c40

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1aa1f8daec2bd3665df72abe808f3a76534107ae75dc62d9f667abc195710c46",
    "cross_cats_sorted": [
      "cs.DL"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2013-07-23T07:23:29Z",
    "title_canon_sha256": "c54389e7074d39a6ff0b0b8934e4fa83df36bab79086b6419fe52ba9db24286d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.5964",
    "kind": "arxiv",
    "version": 1
  }
}