Pith Number

pith:M2EK7HP4

pith:2016:M2EK7HP4BTA47SVW2MDUNY2GZS

not attested not anchored not stored refs pending

Quadboost: A Scalable Concurrent Quadtree

Guangming Tan, Keren Zhou, Wei Zhou

arxiv:1607.03292 v1 · 2016-07-12 · 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{M2EK7HP4BTA47SVW2MDUNY2GZS}

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	2026-05-18T01:11:09.318778Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6688af9dfc0cc1cfcab6d30746e346ccb512bf56949e427dd5f4c95afd09f453

Aliases

arxiv: 1607.03292 · arxiv_version: 1607.03292v1 · doi: 10.48550/arxiv.1607.03292 · pith_short_12: M2EK7HP4BTA4 · pith_short_16: M2EK7HP4BTA47SVW · pith_short_8: M2EK7HP4

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/M2EK7HP4BTA47SVW2MDUNY2GZS \
  | 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: 6688af9dfc0cc1cfcab6d30746e346ccb512bf56949e427dd5f4c95afd09f453

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "608c0aef3a5a0f85804af4106e3bfb416959b4d1fcc4828f57a99e557819172a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2016-07-12T10:05:56Z",
    "title_canon_sha256": "75cc2af276980917da619159deb6a1254a837f7657af23bc5cb7966610f57b0b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.03292",
    "kind": "arxiv",
    "version": 1
  }
}