Pith Number

pith:NLBVUHGK

pith:2015:NLBVUHGKZMNK2D3JB6L24NLFE7

not attested not anchored not stored refs pending

POPmine: Tracking Political Opinion on the Web

Carlos Soares, M\'ario J. Silva, Pedro Saleiro, S\'ilvio Amir

arxiv:1511.09101 v1 · 2015-11-29 · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NLBVUHGKZMNK2D3JB6L24NLFE7}

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	2026-05-18T01:25:41.143691Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ac35a1ccacb1aad0f690f97ae356527d8345f52b6be58321383b33642d08aa4

Aliases

arxiv: 1511.09101 · arxiv_version: 1511.09101v1 · doi: 10.48550/arxiv.1511.09101 · pith_short_12: NLBVUHGKZMNK · pith_short_16: NLBVUHGKZMNK2D3J · pith_short_8: NLBVUHGK

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/NLBVUHGKZMNK2D3JB6L24NLFE7 \
  | 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: 6ac35a1ccacb1aad0f690f97ae356527d8345f52b6be58321383b33642d08aa4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e557ff7c18d308064ba93b80a96ed5c2273d4f7b5d071dd1b52666ee9ac82602",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2015-11-29T22:16:58Z",
    "title_canon_sha256": "03169818a0b80f0562e23012c82d6decb84b5971536f6f05005ed21c9b284fef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.09101",
    "kind": "arxiv",
    "version": 1
  }
}