Pith Number

pith:JTM2Y52A

pith:2015:JTM2Y52AMLTRTQYZ4XRJ7QUEF6

not attested not anchored not stored refs pending

Jeans Analysis of Bok globules in $f(R)$ gravity

Iiro Vilja, Jaakko Vainio

arxiv:1512.04220 v2 · 2015-12-14 · astro-ph.CO · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JTM2Y52AMLTRTQYZ4XRJ7QUEF6}

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	2026-05-18T01:06:21.045163Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4cd9ac774062e719c319e5e29fc2842fa33f80d7459c2bcaa731b31a0fba5c2a

Aliases

arxiv: 1512.04220 · arxiv_version: 1512.04220v2 · doi: 10.48550/arxiv.1512.04220 · pith_short_12: JTM2Y52AMLTR · pith_short_16: JTM2Y52AMLTRTQYZ · pith_short_8: JTM2Y52A

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/JTM2Y52AMLTRTQYZ4XRJ7QUEF6 \
  | 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: 4cd9ac774062e719c319e5e29fc2842fa33f80d7459c2bcaa731b31a0fba5c2a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03434c98bc33ae056386db73572c76ad5a1c87fd3d0b737d86c07615b6b89eb7",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2015-12-14T08:54:31Z",
    "title_canon_sha256": "87088a8c571ac299f3e908a60897a419bf748ceb11a103e473d252fcfbc20bb6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.04220",
    "kind": "arxiv",
    "version": 2
  }
}