Pith Number

pith:VHZDD65Y

pith:2017:VHZDD65Y4QH2ABKVWE6PUJBVMF

not attested not anchored not stored refs pending

Rank-Select Indices Without Tears

Tim Baumann, Torben Hagerup

arxiv:1709.02377 v1 · 2017-09-07 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VHZDD65Y4QH2ABKVWE6PUJBVMF}

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	2026-05-18T00:35:49.380893Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9f231fbb8e40fa00555b13cfa24356161b5340f0a8cce851de7c4e57c44ca30

Aliases

arxiv: 1709.02377 · arxiv_version: 1709.02377v1 · doi: 10.48550/arxiv.1709.02377 · pith_short_12: VHZDD65Y4QH2 · pith_short_16: VHZDD65Y4QH2ABKV · pith_short_8: VHZDD65Y

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/VHZDD65Y4QH2ABKVWE6PUJBVMF \
  | 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: a9f231fbb8e40fa00555b13cfa24356161b5340f0a8cce851de7c4e57c44ca30

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9709bc7a3940df574bc5e2eeff50c6b1fc244d1f6825ae246a0d1b429e328a1b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-09-07T17:53:44Z",
    "title_canon_sha256": "cce048f083800689bb10325a7a32e1e4d5ae253fff4652b750890ab8e9429405"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.02377",
    "kind": "arxiv",
    "version": 1
  }
}