Pith Number

pith:HKXZV7W4

pith:2015:HKXZV7W4VLSGQASKGMY6GAMTIW

not attested not anchored not stored refs pending

Identifying the structural discontinuities of human interactions

Albert-Laszlo Barabasi, Carlo Ratti, Filippo Simini, Maarten Vanhoof, Michael Szell, Philipp H\"ovel, Sebastian Grauwin, Stanislav Sobolevsky, Zbigniew Smoreda

arxiv:1509.03149 v1 · 2015-09-10 · 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{HKXZV7W4VLSGQASKGMY6GAMTIW}

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	2026-05-18T00:01:44.117148Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3aaf9afedcaae468024a3331e3019345b2e30e6ae747ded535bbcf1d510dc3ef

Aliases

arxiv: 1509.03149 · arxiv_version: 1509.03149v1 · doi: 10.48550/arxiv.1509.03149 · pith_short_12: HKXZV7W4VLSG · pith_short_16: HKXZV7W4VLSGQASK · pith_short_8: HKXZV7W4

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/HKXZV7W4VLSGQASKGMY6GAMTIW \
  | 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: 3aaf9afedcaae468024a3331e3019345b2e30e6ae747ded535bbcf1d510dc3ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24c791fab3feedd3f7b6fef9797fac1e98761dbcc8705aa21bfb4bed351cdd0a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2015-09-10T13:40:52Z",
    "title_canon_sha256": "f844c9485baa42dde5716654b9d0d8a6ac77b35ade66d7dfd62d0f763b165f31"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.03149",
    "kind": "arxiv",
    "version": 1
  }
}