Pith Number

pith:C74XWKFN

pith:2015:C74XWKFNFIPSQSO7MEHJKHD5IT

not attested not anchored not stored refs pending

Geography of Emotion: Where in a City are People Happier?

Arthur Huang, David Garcia, Kristina Lerman, Luciano Gallegos

arxiv:1507.07632 v1 · 2015-07-28 · 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{C74XWKFNFIPSQSO7MEHJKHD5IT}

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	2026-05-18T01:36:12.275657Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17f97b28ad2a1f2849df610e951c7d44ebbb24cd9825f95cc6115d15b1aab494

Aliases

arxiv: 1507.07632 · arxiv_version: 1507.07632v1 · doi: 10.48550/arxiv.1507.07632 · pith_short_12: C74XWKFNFIPS · pith_short_16: C74XWKFNFIPSQSO7 · pith_short_8: C74XWKFN

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/C74XWKFNFIPSQSO7MEHJKHD5IT \
  | 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: 17f97b28ad2a1f2849df610e951c7d44ebbb24cd9825f95cc6115d15b1aab494

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b6ea52c198a32acfb261eb7e3624bd9700bed916f65f8249eca1558a050e1a9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2015-07-28T03:46:21Z",
    "title_canon_sha256": "1984e6a3e76b2b48d988bbaf2a7671e2799352dd307c6da35612edb66421d949"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.07632",
    "kind": "arxiv",
    "version": 1
  }
}