Pith Number

pith:WFPRZLKO

pith:2018:WFPRZLKOB5PFD6AFVXN6RMSOBW

not attested not anchored not stored refs pending

Automatic Playlist Continuation through a Composition of Collaborative Filters

Carlos Bentes, Irene Teinemaa, Niek Tax

arxiv:1808.04288 v1 · 2018-08-13 · cs.IR

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

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	2026-05-18T00:08:18.404896Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b15f1cad4e0f5e51f805addbe8b24e0d99add21694eebd2068a3bebc9fb5fdff

Aliases

arxiv: 1808.04288 · arxiv_version: 1808.04288v1 · doi: 10.48550/arxiv.1808.04288 · pith_short_12: WFPRZLKOB5PF · pith_short_16: WFPRZLKOB5PFD6AF · pith_short_8: WFPRZLKO

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/WFPRZLKOB5PFD6AFVXN6RMSOBW \
  | 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: b15f1cad4e0f5e51f805addbe8b24e0d99add21694eebd2068a3bebc9fb5fdff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b49e66554efd78be189cfaf135412c32b011cb36b65f915d3f44fc65417ab9f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2018-08-13T15:24:37Z",
    "title_canon_sha256": "f15aa36629f7ef7172604b50b0921427cdb8269f819370abb5431668516ed179"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.04288",
    "kind": "arxiv",
    "version": 1
  }
}