Pith Number

pith:NPZ6AIYR

pith:2019:NPZ6AIYR3GUDOQDWYZGKISTJ6V

not attested not anchored not stored refs pending

When to reply? Context Sensitive Models to Predict Instructor Interventions in MOOC Forums

Min-Yen Kan, Muthu Kumar Chandrasekaran

arxiv:1905.10851 v1 · 2019-05-26 · cs.CL · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NPZ6AIYR3GUDOQDWYZGKISTJ6V}

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	2026-05-17T23:45:03.584506Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bf3e02311d9a8374076c64ca44a69f571a5644b40d162d254b8e62e1008f740

Aliases

arxiv: 1905.10851 · arxiv_version: 1905.10851v1 · doi: 10.48550/arxiv.1905.10851 · pith_short_12: NPZ6AIYR3GUD · pith_short_16: NPZ6AIYR3GUDOQDW · pith_short_8: NPZ6AIYR

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/NPZ6AIYR3GUDOQDWYZGKISTJ6V \
  | 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: 6bf3e02311d9a8374076c64ca44a69f571a5644b40d162d254b8e62e1008f740

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4c57da8e8877951a41d2234221b0a194979d3aeb0f9693ff66242481fbc491c",
    "cross_cats_sorted": [
      "cs.CY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-05-26T18:40:06Z",
    "title_canon_sha256": "06378825e39389b61d540024f37ec5e1d14adfc6e3ddc8aad6f0108752696950"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.10851",
    "kind": "arxiv",
    "version": 1
  }
}