Pith Number

pith:F7DVB5ZS

pith:2019:F7DVB5ZSALDHWDOKEELTT6NDLA

not attested not anchored not stored refs pending

Creating and experiencing Flipped Learning in Multivariable Calculus for Engineering

Hugo Caerols-Palma, Katia Vogt-Geisse

arxiv:1907.08754 v1 · 2019-07-20 · math.HO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F7DVB5ZSALDHWDOKEELTT6NDLA}

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	2026-05-17T23:40:05.478897Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2fc750f73202c67b0dca211739f9a3583e065ac9032a45a5067941c3db843510

Aliases

arxiv: 1907.08754 · arxiv_version: 1907.08754v1 · doi: 10.48550/arxiv.1907.08754 · pith_short_12: F7DVB5ZSALDH · pith_short_16: F7DVB5ZSALDHWDOK · pith_short_8: F7DVB5ZS

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/F7DVB5ZSALDHWDOKEELTT6NDLA \
  | 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: 2fc750f73202c67b0dca211739f9a3583e065ac9032a45a5067941c3db843510

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db5bd3cb30c802248acc37114b7e4c9c6313f519e1dc0c4fd2dfd24d9d3a1b39",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2019-07-20T04:41:00Z",
    "title_canon_sha256": "f6b5e41ed78ac911e386cfd122a2027ab5cbd5a35f91ae9383bffb409c041453"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.08754",
    "kind": "arxiv",
    "version": 1
  }
}