Pith Number

pith:VTFYFPFH

pith:2019:VTFYFPFH7C3U35WS4D775BQ73S

not attested not anchored not stored refs pending

NSense: A People-centric, non-intrusive Opportunistic Sensing Tool for Contextualizing Nearness

Luis A. Lopes, Paulo Mendes, Rute C. Sofia, Saeik Firdose, Waldir Moreira

arxiv:1906.08029 v1 · 2019-06-19 · cs.NI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VTFYFPFH7C3U35WS4D775BQ73S}

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	2026-05-17T23:42:54.825492Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

accb82bca7f8b74df6d2e0fffe861fdc9e56bda9d784fc021e26d8622d7c0617

Aliases

arxiv: 1906.08029 · arxiv_version: 1906.08029v1 · doi: 10.48550/arxiv.1906.08029 · pith_short_12: VTFYFPFH7C3U · pith_short_16: VTFYFPFH7C3U35WS · pith_short_8: VTFYFPFH

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/VTFYFPFH7C3U35WS4D775BQ73S \
  | 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: accb82bca7f8b74df6d2e0fffe861fdc9e56bda9d784fc021e26d8622d7c0617

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67aa4a1060cb306747f74b29127625decd218f9633d888cd134fed0f6104feb0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NI",
    "submitted_at": "2019-06-19T11:45:28Z",
    "title_canon_sha256": "dbc9f17cede027db21b086eab8db46dc1a236526d70dc9ffc95d1fe23b682b17"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.08029",
    "kind": "arxiv",
    "version": 1
  }
}