Pith Number

pith:YCABJAJU

pith:2015:YCABJAJUWPNHFKPGEWLURWLSKQ

not attested not anchored not stored refs pending

On the use of Standardized Precipitation Index(SPI) for drought intensity assessment

C.S. Murthy, M. Naresh Kumar, M.V.R. Sesha Sai, P.S. Roy

arxiv:1509.04808 v1 · 2015-09-16 · physics.ao-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YCABJAJUWPNHFKPGEWLURWLSKQ}

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	2026-05-18T01:32:51.669137Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c080148134b3da72a9e6259748d97254198c5346842882978be6503bbcce731e

Aliases

arxiv: 1509.04808 · arxiv_version: 1509.04808v1 · doi: 10.48550/arxiv.1509.04808 · pith_short_12: YCABJAJUWPNH · pith_short_16: YCABJAJUWPNHFKPG · pith_short_8: YCABJAJU

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/YCABJAJUWPNHFKPGEWLURWLSKQ \
  | 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: c080148134b3da72a9e6259748d97254198c5346842882978be6503bbcce731e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0be46f96c3aef8576f2ffe11f935c5e33d18395d34eea6575541727ef5f639a9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ao-ph",
    "submitted_at": "2015-09-16T04:08:19Z",
    "title_canon_sha256": "351afb08a6fcd7504799a7ada0095371e00320b7b8f1de9b3d54d979eab07bae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.04808",
    "kind": "arxiv",
    "version": 1
  }
}