Pith Number

pith:YH4ICHDF

pith:2016:YH4ICHDFPCVRY3OQHXKD7LZGVD

not attested not anchored not stored refs pending

A spectral and photometric study of 102 star forming regions in seven spiral galaxies

A.E. Piskunov, A.S. Gusev, E.V. Shimanovskaya, F. Sakhibov, N.V. Kharchenko, O.V. Ezhkova, S.A. Guslyakova, V. Lang, V.V. Bruevich, Yu.N. Efremov

arxiv:1601.07470 v1 · 2016-01-27 · 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{YH4ICHDFPCVRY3OQHXKD7LZGVD}

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	2026-05-18T01:21:45.841606Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c1f8811c6578ab1c6dd03dd43faf26a8dabc4d87de57ef81a9c515622e4aa7c2

Aliases

arxiv: 1601.07470 · arxiv_version: 1601.07470v1 · doi: 10.48550/arxiv.1601.07470 · pith_short_12: YH4ICHDFPCVR · pith_short_16: YH4ICHDFPCVRY3OQ · pith_short_8: YH4ICHDF

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/YH4ICHDFPCVRY3OQHXKD7LZGVD \
  | 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: c1f8811c6578ab1c6dd03dd43faf26a8dabc4d87de57ef81a9c515622e4aa7c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "68803b4ea24668b8ce76d94b091350be1d72eb77728018c1fd8339fc1d475960",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-01-27T17:57:59Z",
    "title_canon_sha256": "ac1c7e009ef65ba4c9cc8c979b8f964672ccaee74803dd0210eb4eaa2a4e3b71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.07470",
    "kind": "arxiv",
    "version": 1
  }
}