Pith Number

pith:YYJDAOMA

pith:2015:YYJDAOMAW6YKDWBLZSQFAEBZZC

not attested not anchored not stored refs pending

Type II Cepheids in the Milky Way disc. Chemical composition of two new W Vir stars: DD Vel and HQ Car

B. Lemasle, G. Bono, G. Galazutdinov, I. Saviane, I. Yegorova, K. Genovali, L. Inno, P. Fran\c{c}ois, R. Da Silva, V. Kovtyukh

arxiv:1505.02789 v1 · 2015-05-11 · 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{YYJDAOMAW6YKDWBLZSQFAEBZZC}

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	2026-05-18T02:14:16.122830Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c612303980b7b0a1d82bcca0501039c8beba2d3c3affeec05223962ad2209f9e

Aliases

arxiv: 1505.02789 · arxiv_version: 1505.02789v1 · doi: 10.48550/arxiv.1505.02789 · pith_short_12: YYJDAOMAW6YK · pith_short_16: YYJDAOMAW6YKDWBL · pith_short_8: YYJDAOMA

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/YYJDAOMAW6YKDWBLZSQFAEBZZC \
  | 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: c612303980b7b0a1d82bcca0501039c8beba2d3c3affeec05223962ad2209f9e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "010c868d0ae0d95a41f07d2236b698b4c2bbfd441a9da0bbb23515ac1d5ba4e7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-05-11T20:10:28Z",
    "title_canon_sha256": "497002855f3155cfae6cc97f32b9ca4b219a51470a8dc03a2e635f81b445bf83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.02789",
    "kind": "arxiv",
    "version": 1
  }
}