Pith Number

pith:U4IXKEY5

pith:2018:U4IXKEY5ZJCZZVL5A3IT6EYNYP

not attested not anchored not stored refs pending

Individual research performance: a proposal for comparing apples to oranges

Ciriaco Andrea D'Angelo, Giovanni Abramo, Tindaro Cicero

arxiv:1812.08512 v1 · 2018-12-20 · 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{U4IXKEY5ZJCZZVL5A3IT6EYNYP}

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	2026-05-17T23:57:49.768382Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a71175131dca459cd57d06d13f130dc3e046c2fb7ca56cf36f5e1e20b2d085b4

Aliases

arxiv: 1812.08512 · arxiv_version: 1812.08512v1 · doi: 10.48550/arxiv.1812.08512 · pith_short_12: U4IXKEY5ZJCZ · pith_short_16: U4IXKEY5ZJCZZVL5 · pith_short_8: U4IXKEY5

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/U4IXKEY5ZJCZZVL5A3IT6EYNYP \
  | 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: a71175131dca459cd57d06d13f130dc3e046c2fb7ca56cf36f5e1e20b2d085b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b5ea19bf7e236404371d589603464a42251e683a5757237eae8c64871540986",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2018-12-20T12:21:13Z",
    "title_canon_sha256": "e2d5ac089f281b6d5623b4e1dbb858504ef8f836ba9d38f159cdf65e7d64a77c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.08512",
    "kind": "arxiv",
    "version": 1
  }
}