Pith Number

pith:ZTCR6274

pith:2018:ZTCR6274YAMQVZ4BHWEJR5X5ZF

not attested not anchored not stored refs pending

Are the Dead Taking Over Facebook? A Big Data Approach to the Future of Death Online

Carl \"Ohman, David Watson

arxiv:1811.03416 v4 · 2018-10-30 · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZTCR6274YAMQVZ4BHWEJR5X5ZF}

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	2026-05-17T23:47:02.540770Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ccc51f6bfcc0190ae7813d8898f6fdc942cd25929f5f781ea2b8dac5fc0d03ff

Aliases

arxiv: 1811.03416 · arxiv_version: 1811.03416v4 · doi: 10.48550/arxiv.1811.03416 · pith_short_12: ZTCR6274YAMQ · pith_short_16: ZTCR6274YAMQVZ4B · pith_short_8: ZTCR6274

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/ZTCR6274YAMQVZ4BHWEJR5X5ZF \
  | 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: ccc51f6bfcc0190ae7813d8898f6fdc942cd25929f5f781ea2b8dac5fc0d03ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb5bf2a75c58ebb9cc5fc1ac5167c40ab8569e4cf699a2f814397a5ce5a28abc",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2018-10-30T10:25:12Z",
    "title_canon_sha256": "ec41bc060958d4090edfd8b63d782d7517c5f1cedafbc70f599e87a70036f6d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.03416",
    "kind": "arxiv",
    "version": 4
  }
}