Pith Number

pith:PO7BUU6T

pith:2018:PO7BUU6TKKH75DX5SMLX5HZXZ2

not attested not anchored not stored refs pending

From evolved stars to the evolution of IC 1613

Atefeh Javadi (IPM, Iran), Jacco Th. van Loon (Keele University, Seyed Azim Hashemi (Sharif University, UK)

arxiv:1812.07230 v1 · 2018-12-18 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PO7BUU6TKKH75DX5SMLX5HZXZ2}

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	2026-05-17T23:58:01.107455Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7bbe1a53d3528ffe8efd93177e9f37cea0803a57f2cc7f13b96d42b61539dc67

Aliases

arxiv: 1812.07230 · arxiv_version: 1812.07230v1 · doi: 10.48550/arxiv.1812.07230 · pith_short_12: PO7BUU6TKKH7 · pith_short_16: PO7BUU6TKKH75DX5 · pith_short_8: PO7BUU6T

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/PO7BUU6TKKH75DX5SMLX5HZXZ2 \
  | 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: 7bbe1a53d3528ffe8efd93177e9f37cea0803a57f2cc7f13b96d42b61539dc67

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5bea7f788dec7d6183c01287aeb72d1c9955c5f071b1d45eb29b13addc898a71",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-12-18T08:36:59Z",
    "title_canon_sha256": "0963c8ca53a1c96ca910f3dabff0dfdb8a130b5a9c63fe1beda883e6f96ae56f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.07230",
    "kind": "arxiv",
    "version": 1
  }
}