Pith Number

pith:5CZO62HF

pith:2016:5CZO62HF2ZFOMCPFFOOZ4Z6CI7

not attested not anchored not stored refs pending

What's the nature of sdA stars?

A. D. Romero, D. Koester, Ingrid Pelisoli, S. O. Kepler

arxiv:1610.05550 v1 · 2016-10-18 · 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{5CZO62HF2ZFOMCPFFOOZ4Z6CI7}

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	2026-05-18T01:01:59.036344Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8b2ef68e5d64ae609e52b9d9e67c247f7db3ac1c7f067d67e1e6e702cc45d4d

Aliases

arxiv: 1610.05550 · arxiv_version: 1610.05550v1 · doi: 10.48550/arxiv.1610.05550 · pith_short_12: 5CZO62HF2ZFO · pith_short_16: 5CZO62HF2ZFOMCPF · pith_short_8: 5CZO62HF

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/5CZO62HF2ZFOMCPFFOOZ4Z6CI7 \
  | 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: e8b2ef68e5d64ae609e52b9d9e67c247f7db3ac1c7f067d67e1e6e702cc45d4d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "323e6cd01f6da84082e0b4c9430a33632795d2a6c9e7714aa681de521996de1e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-10-18T11:51:46Z",
    "title_canon_sha256": "2d38d0122b211dae70864bb71269b942293ddbcdca2d5236532d4229e852adb8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.05550",
    "kind": "arxiv",
    "version": 1
  }
}