Pith Number

pith:74UEJSJS

pith:2014:74UEJSJSTSGL2JRVBSQ7GV4P3O

not attested not anchored not stored refs pending

The introductory astronomy course at the University of Cape Town: probing student perspectives

Saalih Allie, Sarah-Louise Blyth, Vinesh Rajpaul

arxiv:1409.2363 v1 · 2014-09-08 · physics.ed-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{74UEJSJSTSGL2JRVBSQ7GV4P3O}

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	2026-05-18T01:39:55.216098Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff2844c9329c8cbd26350ca1f3578fdbb7bd17ab205ede38d0265c3325e67cea

Aliases

arxiv: 1409.2363 · arxiv_version: 1409.2363v1 · doi: 10.48550/arxiv.1409.2363 · pith_short_12: 74UEJSJSTSGL · pith_short_16: 74UEJSJSTSGL2JRV · pith_short_8: 74UEJSJS

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/74UEJSJSTSGL2JRVBSQ7GV4P3O \
  | 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: ff2844c9329c8cbd26350ca1f3578fdbb7bd17ab205ede38d0265c3325e67cea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0be230e8345ec791887251ee1faee5044ee2f40ec69f5acfcce1ea475fc76308",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2014-09-08T14:28:45Z",
    "title_canon_sha256": "c577729e585f993d9c1a20cfd61b5e9d0dca8ac40af936be1002b113fac9e10e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.2363",
    "kind": "arxiv",
    "version": 1
  }
}