Pith Number

pith:GCP7ZWLQ

pith:2009:GCP7ZWLQLXL6GSXQZESJZGLT5W

not attested not anchored not stored refs pending

Physics of systems with motivation as an interdisciplinary branch of science

Ihor Lubashevsky, Natalia Plawinska

arxiv:0902.3785 v1 · 2009-02-22 · 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{GCP7ZWLQLXL6GSXQZESJZGLT5W}

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	2026-05-18T02:14:46.505154Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

309ffcd9705dd7e34af0c9249c9973ed87b554a462dc8e7db8a6b2a113abeef7

Aliases

arxiv: 0902.3785 · arxiv_version: 0902.3785v1 · doi: 10.48550/arxiv.0902.3785 · pith_short_12: GCP7ZWLQLXL6 · pith_short_16: GCP7ZWLQLXL6GSXQ · pith_short_8: GCP7ZWLQ

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/GCP7ZWLQLXL6GSXQZESJZGLT5W \
  | 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: 309ffcd9705dd7e34af0c9249c9973ed87b554a462dc8e7db8a6b2a113abeef7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "49c95626380e589df034edd30467975b680c703fce937bb6f6032d5904394b2f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2009-02-22T11:19:13Z",
    "title_canon_sha256": "8623f5739327462f77e4cc90cffded00900e55349cfacae5103088b0a5c14230"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.3785",
    "kind": "arxiv",
    "version": 1
  }
}