Pith Number

pith:MATAJECL

pith:2019:MATAJECLH6NDF3GGM2JAYGXRMV

not attested not anchored not stored refs pending

Toward the Evaluation of Written Proficiency on a Collaborative Social Network for Learning Languages: Yask

Fabio N. Silva, George Due\~nas, Sergio Jimenez

arxiv:1903.09846 v1 · 2019-03-23 · cs.SI · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MATAJECLH6NDF3GGM2JAYGXRMV}

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	2026-05-17T23:50:35.337909Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

602604904b3f9a32ecc666920c1af1656a6e06cd460bac4231723d187832528c

Aliases

arxiv: 1903.09846 · arxiv_version: 1903.09846v1 · doi: 10.48550/arxiv.1903.09846 · pith_short_12: MATAJECLH6ND · pith_short_16: MATAJECLH6NDF3GG · pith_short_8: MATAJECL

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/MATAJECLH6NDF3GGM2JAYGXRMV \
  | 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: 602604904b3f9a32ecc666920c1af1656a6e06cd460bac4231723d187832528c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f6ee93965575ae9c95b31ffbb08c7b7db39a70824e35a173e32a0e069efbbb1",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2019-03-23T16:40:17Z",
    "title_canon_sha256": "519f7170eee2014a255594df09969b30d3c4386ebb895f5878b1f4036557e60f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.09846",
    "kind": "arxiv",
    "version": 1
  }
}