Pith Number

pith:RG7L5O2J

pith:2017:RG7L5O2J2YATJOQQ7JKVXX6BHX

not attested not anchored not stored refs pending

City Brain, a New Architecture of Smart City Based on the Internet Brain

Feng Liu

arxiv:1710.04123 v3 · 2017-09-24 · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RG7L5O2J2YATJOQQ7JKVXX6BHX}

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	2026-05-18T00:20:52.067043Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89bebebb49d60134ba10fa555bdfc13ded5011a73611968d5a57b1fe14c53f4d

Aliases

arxiv: 1710.04123 · arxiv_version: 1710.04123v3 · doi: 10.48550/arxiv.1710.04123 · pith_short_12: RG7L5O2J2YAT · pith_short_16: RG7L5O2J2YATJOQQ · pith_short_8: RG7L5O2J

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/RG7L5O2J2YATJOQQ7JKVXX6BHX \
  | 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: 89bebebb49d60134ba10fa555bdfc13ded5011a73611968d5a57b1fe14c53f4d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b14b593e50fd4db4b473e4d2b31432438d994d1758cea9148c3f33bc5bb60cc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2017-09-24T05:04:25Z",
    "title_canon_sha256": "2c925dfc40dbcee2b3cde6c4cca44dfcdac6c5ca16cf63dbe292c184f8fd14af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.04123",
    "kind": "arxiv",
    "version": 3
  }
}