Pith Number

pith:BHKCDUHQ

pith:2019:BHKCDUHQ4LHDTUWCNVZM4LNFLH

not attested not anchored not stored refs pending

Exploring the context of course rankings on online academic forums

Bob Edmison, Daron Williams, Larry Cox II, Matthew Louvet, Taha Hassan

arxiv:1907.05846 v1 · 2019-07-10 · cs.CY · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BHKCDUHQ4LHDTUWCNVZM4LNFLH}

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	2026-05-17T23:40:44.214720Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09d421d0f0e2ce39d2c26d72ce2da559fbfc2ac09366aa5347a16d7115df5652

Aliases

arxiv: 1907.05846 · arxiv_version: 1907.05846v1 · doi: 10.48550/arxiv.1907.05846 · pith_short_12: BHKCDUHQ4LHD · pith_short_16: BHKCDUHQ4LHDTUWC · pith_short_8: BHKCDUHQ

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/BHKCDUHQ4LHDTUWCNVZM4LNFLH \
  | 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: 09d421d0f0e2ce39d2c26d72ce2da559fbfc2ac09366aa5347a16d7115df5652

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b95c827b8b5d6e227d90bdb6ab6bdfa068045f6b53b5f23486db50e89778b0c",
    "cross_cats_sorted": [
      "cs.SI"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2019-07-10T18:36:43Z",
    "title_canon_sha256": "a982cc804b1f5120d893218943280c8104acbc95cfb9fe0d1928e2c42c60c6a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.05846",
    "kind": "arxiv",
    "version": 1
  }
}