Pith Number

pith:QDFJCQZD

pith:2016:QDFJCQZDNZIDR7ANV5W7BZY6QK

not attested not anchored not stored refs pending

A Practical Algorithm for Packing Tubes and Boxes

Jo\~ao Nuno Tavares, Jo\~ao Pedro Pedroso, Jorge Leite

arxiv:1609.07676 v1 · 2016-09-24 · 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{QDFJCQZDNZIDR7ANV5W7BZY6QK}

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	2026-05-18T01:03:55.755755Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80ca9143236e5038fc0daf6df0e71e828854f13c802d37004f68eb598e978ed2

Aliases

arxiv: 1609.07676 · arxiv_version: 1609.07676v1 · doi: 10.48550/arxiv.1609.07676 · pith_short_12: QDFJCQZDNZID · pith_short_16: QDFJCQZDNZIDR7AN · pith_short_8: QDFJCQZD

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/QDFJCQZDNZIDR7ANV5W7BZY6QK \
  | 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: 80ca9143236e5038fc0daf6df0e71e828854f13c802d37004f68eb598e978ed2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc058cbf7f6d4fce415b2e5e4059ba5db67744bf699a34421b5ec7ed3f0d23d0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2016-09-24T21:07:32Z",
    "title_canon_sha256": "3ec3ffa48b5ffa2f1eb432020751e8510acbd5237e78e1eed535d90a2b8cef6f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.07676",
    "kind": "arxiv",
    "version": 1
  }
}