Pith Number

pith:HLK6IPY5

pith:2005:HLK6IPY5ULXBTMYREJRHXIAJZB

not attested not anchored not stored refs pending

The Topology of Music Recommendation Networks

Javier M. Buld\'u, Markus Koppenberger, Oscar Celma, Pedro Cano

arxiv:physics/0512266 v1 · 2005-12-29 · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HLK6IPY5ULXBTMYREJRHXIAJZB}

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	2026-05-18T03:55:47.449870Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ad5e43f1da2ee19b31122627ba009c879ec975f821f1895b495d97b164ef9b7

Aliases

arxiv: physics/0512266 · arxiv_version: physics/0512266v1 · doi: 10.48550/arxiv.physics/0512266 · pith_short_12: HLK6IPY5ULXB · pith_short_16: HLK6IPY5ULXBTMYR · pith_short_8: HLK6IPY5

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/HLK6IPY5ULXBTMYREJRHXIAJZB \
  | 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: 3ad5e43f1da2ee19b31122627ba009c879ec975f821f1895b495d97b164ef9b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2dd9c1983c2247095fb8ea82e743cbfc9a6f3c5d60af235b049b633cb02cb163",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2005-12-29T18:57:12Z",
    "title_canon_sha256": "54f3a19f7a2f302b475a4c504aeda58992a6f9b0279a17382e19eed5ea75ff43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0512266",
    "kind": "arxiv",
    "version": 1
  }
}