Pith Number

pith:B5TREFSV

pith:2021:B5TREFSVCZJRZLBRJSVBCB4ZUT

not attested not anchored not stored refs pending

Learning Objectives, Insights, and Assessments: How Specification Formats Impact Design

Elsie Lee-Robbins, Eytan Adar, Shiqing He

arxiv:2108.03111 v1 · 2021-08-06 · 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{B5TREFSVCZJRZLBRJSVBCB4ZUT}

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	2026-07-05T03:03:45.811405Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f6712165516531cac314caa110799a4f46e1fd7da457ca6b910e0b80ceb665b

Aliases

arxiv: 2108.03111 · arxiv_version: 2108.03111v1 · doi: 10.48550/arxiv.2108.03111 · pith_short_12: B5TREFSVCZJR · pith_short_16: B5TREFSVCZJRZLBR · pith_short_8: B5TREFSV

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/B5TREFSVCZJRZLBRJSVBCB4ZUT \
  | 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: 0f6712165516531cac314caa110799a4f46e1fd7da457ca6b910e0b80ceb665b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a97f91eb74da6fe3179f20099344fe820ad2d425d6a385ee4b86e2d49519111",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2021-08-06T13:29:36Z",
    "title_canon_sha256": "1934b33d406b0cda7a07e9a2a7a5004858a0249807cdee1df9da9fe570242bbb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.03111",
    "kind": "arxiv",
    "version": 1
  }
}