Pith Number

pith:CIOB3WTI

pith:2013:CIOB3WTIPD3SI2WWOQZZYFIAMQ

not attested not anchored not stored refs pending

Large-scale analysis of frequency modulation in birdsong databases

Dan Stowell, Mark D. Plumbley

arxiv:1311.4764 v1 · 2013-11-19 · cs.SD

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CIOB3WTIPD3SI2WWOQZZYFIAMQ}

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	2026-05-18T01:32:42.006913Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

121c1dda6878f7246ad674339c1500642d583eba0647ff988c8ddb73089319bc

Aliases

arxiv: 1311.4764 · arxiv_version: 1311.4764v1 · doi: 10.48550/arxiv.1311.4764 · pith_short_12: CIOB3WTIPD3S · pith_short_16: CIOB3WTIPD3SI2WW · pith_short_8: CIOB3WTI

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/CIOB3WTIPD3SI2WWOQZZYFIAMQ \
  | 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: 121c1dda6878f7246ad674339c1500642d583eba0647ff988c8ddb73089319bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06fa47acc7f4daa235f9fdd27d85b745392a146863dff408e4306017783a7d73",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "cs.SD",
    "submitted_at": "2013-11-19T15:02:55Z",
    "title_canon_sha256": "c9f1be6e18154469777df8fbe377c06931d4abac7a9c0bebe15e690471449678"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.4764",
    "kind": "arxiv",
    "version": 1
  }
}