Pith Number

pith:MG4R5W6M

pith:2019:MG4R5W6MBFZSM6BZ4D5FNKC3EC

not attested not anchored not stored refs pending

Towards QoS-Aware Recommendations

Daniel Menasch\'e, Felipe Assis, Jo\~ao Ismael Pinheiro, Mateus Nogueira, Pavlos Sermpezis, Savvas Kastanakis, Thrasyvoulos Spyropoulos

arxiv:1907.06392 v2 · 2019-07-15 · cs.MM · cs.NI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MG4R5W6MBFZSM6BZ4D5FNKC3EC}

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	2026-07-05T01:39:24.529449Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

61b91edbcc0973267839e0fa56a85b20b363897a7c006c3f23a998c6ca91195b

Aliases

arxiv: 1907.06392 · arxiv_version: 1907.06392v2 · doi: 10.48550/arxiv.1907.06392 · pith_short_12: MG4R5W6MBFZS · pith_short_16: MG4R5W6MBFZSM6BZ · pith_short_8: MG4R5W6M

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/MG4R5W6MBFZSM6BZ4D5FNKC3EC \
  | 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: 61b91edbcc0973267839e0fa56a85b20b363897a7c006c3f23a998c6ca91195b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1642f3a86f5ae2b94936c6bd432be1519dfe08644f7830c5994cb6014252cd6b",
    "cross_cats_sorted": [
      "cs.NI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MM",
    "submitted_at": "2019-07-15T09:42:11Z",
    "title_canon_sha256": "377dca467b5ba334a3bdb0a7eb48d8f6fcf1b7547d1881f6aadc655ba399fd00"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.06392",
    "kind": "arxiv",
    "version": 2
  }
}