Pith Number

pith:L42KKMMO

pith:2018:L42KKMMOHVLAL72M76Z5ZTBPSK

not attested not anchored not stored refs pending

A Twitter Tale of Three Hurricanes: Harvey, Irma, and Maria

Ferda Ofli, Firoj Alam, Michael Aupetit, Muhammad Imran

arxiv:1805.05144 v2 · 2018-05-14 · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L42KKMMOHVLAL72M76Z5ZTBPSK}

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	2026-05-18T00:16:02.613015Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f34a5318e3d5605ff4cffb3dccc2f929ba08d6b835290f34faf4930b3842f3b

Aliases

arxiv: 1805.05144 · arxiv_version: 1805.05144v2 · doi: 10.48550/arxiv.1805.05144 · pith_short_12: L42KKMMOHVLA · pith_short_16: L42KKMMOHVLAL72M · pith_short_8: L42KKMMO

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/L42KKMMOHVLAL72M76Z5ZTBPSK \
  | 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: 5f34a5318e3d5605ff4cffb3dccc2f929ba08d6b835290f34faf4930b3842f3b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f83a2ca67d1d170959886597954f687e0b42760beaf9190f7f7653f05647126",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2018-05-14T12:38:44Z",
    "title_canon_sha256": "3dc7cb063eebeb43a442955a02464ae0ad6fc2a90d9d35093f606e6716ef2e4b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.05144",
    "kind": "arxiv",
    "version": 2
  }
}