Pith Number

pith:IUMPJH2D

pith:2019:IUMPJH2DYAU5QKD2CWN6KZET3K

not attested not anchored not stored refs pending

PARQR: Augmenting the Piazza Online Forum to Better Support Degree Seeking Online Masters Students

Abhishek Mangal, Chirag Tailor, Girish Murali, India Irish, Niklas Gustafsson, Noah Bilgrien, Rosa Arriaga, Roy Finkelberg, Sumedha Raman, Thad Starner

arxiv:1909.02043 v1 · 2019-09-04 · cs.HC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IUMPJH2DYAU5QKD2CWN6KZET3K}

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	2026-07-05T00:02:29.674036Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4518f49f43c029d8287a159be56493da84da07db1772b92bb76cf5b82569eda9

Aliases

arxiv: 1909.02043 · arxiv_version: 1909.02043v1 · doi: 10.48550/arxiv.1909.02043 · pith_short_12: IUMPJH2DYAU5 · pith_short_16: IUMPJH2DYAU5QKD2 · pith_short_8: IUMPJH2D

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/IUMPJH2DYAU5QKD2CWN6KZET3K \
  | 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: 4518f49f43c029d8287a159be56493da84da07db1772b92bb76cf5b82569eda9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03bf3b7b72b9dff9af0e4ea135da1dff088907e5411e1d91de9770504ecf8fe2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2019-09-04T18:37:58Z",
    "title_canon_sha256": "69bdfb2171397fb86a53303dbb02c05b414a739948a5130e7939f0322d2759a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.02043",
    "kind": "arxiv",
    "version": 1
  }
}