Pith Number

pith:D733CNJK

pith:2025:D733CNJK24VPMKNEKGEJ2MQKAN

not attested not anchored not stored refs pending

A review of annotation classification tools in the educational domain

Antonio Sarasa-Cabezuelo, Joaqu\'in Gayoso-Cabada, Jos\'e-Luis Sierra

arxiv:2501.14976 v1 · 2025-01-24 · cs.CL · 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{D733CNJK24VPMKNEKGEJ2MQKAN}

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	2026-07-05T10:05:21.537166Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ff7b1352ad72af629a451889d320a037535c40d10f849bbf9d25b9ebdf29fb9

Aliases

arxiv: 2501.14976 · arxiv_version: 2501.14976v1 · doi: 10.48550/arxiv.2501.14976 · pith_short_12: D733CNJK24VP · pith_short_16: D733CNJK24VPMKNE · pith_short_8: D733CNJK

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/D733CNJK24VPMKNEKGEJ2MQKAN \
  | 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: 1ff7b1352ad72af629a451889d320a037535c40d10f849bbf9d25b9ebdf29fb9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ee15691e8481909cc20a2f1d8eb382b43537ac3968969109b8059a343f5dfee",
    "cross_cats_sorted": [
      "cs.DL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-01-24T23:18:21Z",
    "title_canon_sha256": "6a27527e96d9d260196ee436d169d947cb6919f87311339669408232e82754ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.14976",
    "kind": "arxiv",
    "version": 1
  }
}