Pith Number

pith:BF56F7GB

pith:2017:BF56F7GBZECBZUIL3RDRTRU5A6

not attested not anchored not stored refs pending

The City Pulse of Buenos Aires

Carlos Sarraute, Carolina Lang, Nicolas B. Ponieman, Sebastian Anapolsky

arxiv:1707.01032 v2 · 2017-07-04 · cs.SI · cs.CY · 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{BF56F7GBZECBZUIL3RDRTRU5A6}

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	2026-05-18T00:38:47.156861Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

097be2fcc1c9041cd10bdc4719c69d07b5acac98f5036959d946b750f3326891

Aliases

arxiv: 1707.01032 · arxiv_version: 1707.01032v2 · doi: 10.48550/arxiv.1707.01032 · pith_short_12: BF56F7GBZECB · pith_short_16: BF56F7GBZECBZUIL · pith_short_8: BF56F7GB

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/BF56F7GBZECBZUIL3RDRTRU5A6 \
  | 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: 097be2fcc1c9041cd10bdc4719c69d07b5acac98f5036959d946b750f3326891

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9cfca65bf2e866e3c5229b72bbf8127f83615ad6525023583444d40b8b4e5c0",
    "cross_cats_sorted": [
      "cs.CY",
      "physics.soc-ph"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2017-07-04T15:18:06Z",
    "title_canon_sha256": "fe843cfc9ea2db4d7b8668bdbf0816b3c892b1550ef5c6a3af7180c26b4cd833"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.01032",
    "kind": "arxiv",
    "version": 2
  }
}