Pith Number

pith:GFKYCIGS

pith:2015:GFKYCIGSSN67WEIBWMTFTHNBGU

not attested not anchored not stored refs pending

Communication with family and friends across the life course

Anna Rotkirch, Asim Ghosh, Daniel Monsivais, Janos Kertesz, Kimmo Kaski, Kunal Bhattacharya, Tamas David-Barrett

arxiv:1512.09114 v1 · 2015-12-30 · physics.soc-ph · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GFKYCIGSSN67WEIBWMTFTHNBGU}

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	2026-05-18T00:51:18.179213Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31558120d2937dfb1101b326599da135080b4705c12d8d49523bf9e5ac4449fb

Aliases

arxiv: 1512.09114 · arxiv_version: 1512.09114v1 · doi: 10.48550/arxiv.1512.09114 · pith_short_12: GFKYCIGSSN67 · pith_short_16: GFKYCIGSSN67WEIB · pith_short_8: GFKYCIGS

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/GFKYCIGSSN67WEIBWMTFTHNBGU \
  | 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: 31558120d2937dfb1101b326599da135080b4705c12d8d49523bf9e5ac4449fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f89a77a48d87eaa93cd43e2ec13989c31181f9b89d02295cf98fcc71ab65aec2",
    "cross_cats_sorted": [
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2015-12-30T20:43:42Z",
    "title_canon_sha256": "850e86fe52431ef1cc9a6b0174d2cd7d1fd5b6c939823a25117918390b5fd8e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.09114",
    "kind": "arxiv",
    "version": 1
  }
}