Pith Number

pith:UMXR2JCB

pith:2022:UMXR2JCBW4LQMUKUU7XDUU35RP

not attested not anchored not stored refs pending

Anticipated versus Actual Effects of Platform Design Change: A Case Study of Twitter's Character Limit

Ashton Anderson, Justyna Cz\k{e}stochowska, Kristina Gligori\'c, Robert West

arxiv:2208.14392 v1 · 2022-08-30 · cs.SI · cs.CY · 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{UMXR2JCBW4LQMUKUU7XDUU35RP}

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	2026-07-05T04:53:11.846635Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a32f1d2441b717065154a7ee3a537d8bd958099f2eeca15d3d1d06aab39475a4

Aliases

arxiv: 2208.14392 · arxiv_version: 2208.14392v1 · doi: 10.48550/arxiv.2208.14392 · pith_short_12: UMXR2JCBW4LQ · pith_short_16: UMXR2JCBW4LQMUKU · pith_short_8: UMXR2JCB

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/UMXR2JCBW4LQMUKUU7XDUU35RP \
  | 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: a32f1d2441b717065154a7ee3a537d8bd958099f2eeca15d3d1d06aab39475a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d883bc85dc3253d087d1aafd8be4f1620f2a9580da8983ceb29281112455a788",
    "cross_cats_sorted": [
      "cs.CY",
      "cs.HC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2022-08-30T16:59:19Z",
    "title_canon_sha256": "f06b94d4e085fefe2e409598e5fc4370d0f3f35183a759881b27707d34496d3f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2208.14392",
    "kind": "arxiv",
    "version": 1
  }
}