Pith Number

pith:DA4SNVLP

pith:2015:DA4SNVLPNOVKECX74I6B7FRR7W

not attested not anchored not stored refs pending

Optical Spectroscopy of Supernova Remnants in M81 and M82

Bon-Chul Koo, Byeong-Gon Park, In Sung Jang, Jong Hwan Lee, Jubee Sohn, Myung Gyoon Lee, Narae Hwang, Sang Chul Kim, Sungsoon Lim, Youkyung Ko

arxiv:1503.01135 v1 · 2015-03-03 · 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{DA4SNVLPNOVKECX74I6B7FRR7W}

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	2026-05-18T02:04:06.343924Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

183926d56f6baaa20affe23c1f9631fda6d84c5cf9c780fda153d0aacb1883a4

Aliases

arxiv: 1503.01135 · arxiv_version: 1503.01135v1 · doi: 10.48550/arxiv.1503.01135 · pith_short_12: DA4SNVLPNOVK · pith_short_16: DA4SNVLPNOVKECX7 · pith_short_8: DA4SNVLP

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/DA4SNVLPNOVKECX74I6B7FRR7W \
  | 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: 183926d56f6baaa20affe23c1f9631fda6d84c5cf9c780fda153d0aacb1883a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a47a1cbc8f29cccf979f752ae1c8d684edea6498b2e9488f4df5f11f07b73d3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-03-03T21:45:24Z",
    "title_canon_sha256": "47ee5a53f75709d8555e148b414df3d8cc63c3ac9a29e9cf1e6f58e8142a327b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.01135",
    "kind": "arxiv",
    "version": 1
  }
}