Pith Number

pith:44WDTGZ6

pith:2015:44WDTGZ6KFTKDQNKHVSWUF7LTA

not attested not anchored not stored refs pending

Planck view of the M82 galaxy

A.A. Nucita, A.L. Kashin, A. Qadir, D. Vetrugno, F. De Paolis, G. Ingrosso, G. Yegorian, H.G. Khachatryan, Ph. Jetzer, S. Sargsyan, V.G. Gurzadyan

arxiv:1509.05212 v1 · 2015-09-17 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{44WDTGZ6KFTKDQNKHVSWUF7LTA}

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	2026-05-18T01:30:17.664017Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e72c399b3e5166a1c1aa3d656a17eb98118d7e01571d429b3b5531be3c70824b

Aliases

arxiv: 1509.05212 · arxiv_version: 1509.05212v1 · doi: 10.48550/arxiv.1509.05212 · pith_short_12: 44WDTGZ6KFTK · pith_short_16: 44WDTGZ6KFTKDQNK · pith_short_8: 44WDTGZ6

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/44WDTGZ6KFTKDQNKHVSWUF7LTA \
  | 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: e72c399b3e5166a1c1aa3d656a17eb98118d7e01571d429b3b5531be3c70824b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f3050c3d7aa38c5418c9240b1d04e3636980c462c59f3b4ec156a041ac73f6b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-09-17T11:31:13Z",
    "title_canon_sha256": "be8199c4490711b8041c55d2839a953fea67a4c45c0cb4b656df0de65c0f2d05"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.05212",
    "kind": "arxiv",
    "version": 1
  }
}