Pith Number

pith:HKWQVW5J

pith:2018:HKWQVW5J5HG6CUFAWN4KSWFR56

not attested not anchored not stored refs pending

Red-Black Trees with Constant Update Time

Amr Elmasry, Fady Ahdy, Mahmoud Hashem, Mostafa Kahla

arxiv:1804.02112 v1 · 2018-04-06 · 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{HKWQVW5J5HG6CUFAWN4KSWFR56}

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	2026-05-18T00:19:07.831768Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3aad0adba9e9cde150a0b378a958b1efbadaf90f3ddd05c1f4c5f0fe406b1471

Aliases

arxiv: 1804.02112 · arxiv_version: 1804.02112v1 · doi: 10.48550/arxiv.1804.02112 · pith_short_12: HKWQVW5J5HG6 · pith_short_16: HKWQVW5J5HG6CUFA · pith_short_8: HKWQVW5J

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/HKWQVW5J5HG6CUFAWN4KSWFR56 \
  | 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: 3aad0adba9e9cde150a0b378a958b1efbadaf90f3ddd05c1f4c5f0fe406b1471

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "977f0b0ef6e2cc36a0e2492e0c5ca5dadda6fc1aaa81af305a947c7d2684983a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-04-06T02:10:25Z",
    "title_canon_sha256": "fd5710c0a33c2ac0dd070a3bacbb3b2947aecf5a8f1b8d8644f7086cac487f53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.02112",
    "kind": "arxiv",
    "version": 1
  }
}