Pith Number

pith:F3V5DIHQ

pith:2015:F3V5DIHQV6WX3XBN5BKSPZYLZ6

not attested not anchored not stored refs pending

Learning to Hash for Indexing Big Data - A Survey

Jun Wang, Sanjiv Kumar, Shih-Fu Chang, Wei Liu

arxiv:1509.05472 v1 · 2015-09-17 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F3V5DIHQV6WX3XBN5BKSPZYLZ6}

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	2026-05-18T01:32:43.104130Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2eebd1a0f0afad7ddc2de85527e70bcfbd992cd9b66715bda479f5455752f61e

Aliases

arxiv: 1509.05472 · arxiv_version: 1509.05472v1 · doi: 10.48550/arxiv.1509.05472 · pith_short_12: F3V5DIHQV6WX · pith_short_16: F3V5DIHQV6WX3XBN · pith_short_8: F3V5DIHQ

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/F3V5DIHQV6WX3XBN5BKSPZYLZ6 \
  | 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: 2eebd1a0f0afad7ddc2de85527e70bcfbd992cd9b66715bda479f5455752f61e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "371a2177616c677a30d27d83f56881dc428ff684978bd09089f494363e915d80",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2015-09-17T23:19:07Z",
    "title_canon_sha256": "33fa8b637a267131a24724636365dbcc1edf916a488066d4ce6e6081b1f93f7a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.05472",
    "kind": "arxiv",
    "version": 1
  }
}