Pith Number

pith:5H7WGR2E

pith:2015:5H7WGR2E7TGI4R6KDJF6K6DX7G

not attested not anchored not stored refs pending

Investigating the interplay between fundamentals of national research systems: performance, investments and international collaborations

Andrea Gabrielli, Andrea Zaccaria, Giulio Cimini

arxiv:1507.08072 v2 · 2015-07-29 · 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{5H7WGR2E7TGI4R6KDJF6K6DX7G}

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	2026-05-18T01:04:05.884815Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9ff634744fccc8e47ca1a4be57877f999398e3f6ea689f973ea239f67c0c1d4

Aliases

arxiv: 1507.08072 · arxiv_version: 1507.08072v2 · doi: 10.48550/arxiv.1507.08072 · pith_short_12: 5H7WGR2E7TGI · pith_short_16: 5H7WGR2E7TGI4R6K · pith_short_8: 5H7WGR2E

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/5H7WGR2E7TGI4R6KDJF6K6DX7G \
  | 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: e9ff634744fccc8e47ca1a4be57877f999398e3f6ea689f973ea239f67c0c1d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16fff3f17857d1d57a1aaac7acd526f2167992c2770576a7051428d176eca4d0",
    "cross_cats_sorted": [
      "cs.DL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2015-07-29T09:15:59Z",
    "title_canon_sha256": "453ebb9b95400c498fb4be63dd4256e5d07daa16c6c56b75a2fa95d15b0cfb7e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.08072",
    "kind": "arxiv",
    "version": 2
  }
}