Pith Number

pith:XYTZ3Y2L

pith:2019:XYTZ3Y2LKBE56Q4MGTQLAOJVA3

not attested not anchored not stored refs pending

From Search Engines to Search Services: An End-User Driven Approach

Alejandro Fernandez (LIFIA), Gabriela Bosetti, Gustavo Rossi (UNLP), IRIT), Marco Winckler (UFRGS, Polytech'Lab, Sergio Firmenich (UNLP)

arxiv:1905.10215 v1 · 2019-05-24 · cs.HC · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XYTZ3Y2LKBE56Q4MGTQLAOJVA3}

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	2026-05-17T23:45:10.910406Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be279de34b5049df438c34e0b0393506c12e867dbbb89f8438e1039d1e962fc4

Aliases

arxiv: 1905.10215 · arxiv_version: 1905.10215v1 · doi: 10.48550/arxiv.1905.10215 · pith_short_12: XYTZ3Y2LKBE5 · pith_short_16: XYTZ3Y2LKBE56Q4M · pith_short_8: XYTZ3Y2L

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/XYTZ3Y2LKBE56Q4MGTQLAOJVA3 \
  | 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: be279de34b5049df438c34e0b0393506c12e867dbbb89f8438e1039d1e962fc4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4af3a7cfa7cbd068f641a223190775e527479bf9d3f588e967ca104f0458f5e9",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2019-05-24T13:10:10Z",
    "title_canon_sha256": "8fe1774701588a7e71d649fc30a74658ad961da3f9463d8b1683aacbcfae3613"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.10215",
    "kind": "arxiv",
    "version": 1
  }
}