Pith Number

pith:27PUACF6

pith:2019:27PUACF63JR3RGGLNW4HPE4IBL

not attested not anchored not stored refs pending

Belga B-trees

Erik D.Demaine, Grigorios Koumoutsos, John Iacono, Stefan Langerman

arxiv:1903.03560 v1 · 2019-03-08 · 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{27PUACF63JR3RGGLNW4HPE4IBL}

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	2026-05-17T23:51:45.175221Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7df4008beda63b898cb6db87793880aec2583508b0797780da5d1ea4ad1a2a6

Aliases

arxiv: 1903.03560 · arxiv_version: 1903.03560v1 · doi: 10.48550/arxiv.1903.03560 · pith_short_12: 27PUACF63JR3 · pith_short_16: 27PUACF63JR3RGGL · pith_short_8: 27PUACF6

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/27PUACF63JR3RGGLNW4HPE4IBL \
  | 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: d7df4008beda63b898cb6db87793880aec2583508b0797780da5d1ea4ad1a2a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79f2fa4008716af7031faa91d97610d0e2d0e687f30df8b9e2ddfe435a925b73",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-03-08T17:16:26Z",
    "title_canon_sha256": "70529cfae9b00b0bb722e7fd42c4f226bb1cf37de20d3ecd67465930cb33a006"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.03560",
    "kind": "arxiv",
    "version": 1
  }
}