Pith Number

pith:4NW6IF7R

pith:2015:4NW6IF7R66VZFHFU3CH2DDCIW5

not attested not anchored not stored refs pending

The Evolution of Interacting Spiral Galaxy NGC 5194

Fenghui Zhang, Lang Wang, Liantao Cheng, Ruixiang Chang, Xiaoyu Kang

arxiv:1503.00398 v1 · 2015-03-02 · 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{4NW6IF7R66VZFHFU3CH2DDCIW5}

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	2026-05-18T01:40:53.863290Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e36de417f1f7ab929cb4d88fa18c48b7760b03d60ff0331ab32521c863ed2134

Aliases

arxiv: 1503.00398 · arxiv_version: 1503.00398v1 · doi: 10.48550/arxiv.1503.00398 · pith_short_12: 4NW6IF7R66VZ · pith_short_16: 4NW6IF7R66VZFHFU · pith_short_8: 4NW6IF7R

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/4NW6IF7R66VZFHFU3CH2DDCIW5 \
  | 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: e36de417f1f7ab929cb4d88fa18c48b7760b03d60ff0331ab32521c863ed2134

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "617f7a2c96214d1c8ec875583c2339570c87dbf9a7e8d6cd26c21194b5e45784",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-03-02T02:41:51Z",
    "title_canon_sha256": "a5302fee63b402ec1d3b7005509a74beb759335d77f346ae4a184dded7c11ae9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.00398",
    "kind": "arxiv",
    "version": 1
  }
}