Pith Number

pith:O77Q2VAB

pith:2017:O77Q2VABZ55O7STJJLMMDZ4YAM

not attested not anchored not stored refs pending

Meet the family - the catalog of known hot subdwarf stars

Boris T. G\"ansicke, Elizabeth M. Green, Johannes Schaffenroth, John H. Telting, Nicola P. Gentile Fusillo, Peter Nemeth, Roy H. {\O}stensen, Stephan Geier, Ulrich Heber

arxiv:1711.01856 v1 · 2017-11-06 · 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{O77Q2VABZ55O7STJJLMMDZ4YAM}

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	2026-05-18T00:31:16.701845Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77ff0d5401cf7aefca694ad8c1e7980308187b5761205c623a1211170d91d476

Aliases

arxiv: 1711.01856 · arxiv_version: 1711.01856v1 · doi: 10.48550/arxiv.1711.01856 · pith_short_12: O77Q2VABZ55O · pith_short_16: O77Q2VABZ55O7STJ · pith_short_8: O77Q2VAB

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/O77Q2VABZ55O7STJJLMMDZ4YAM \
  | 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: 77ff0d5401cf7aefca694ad8c1e7980308187b5761205c623a1211170d91d476

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f356c88f2656dd62800bd189df6f669911cf3e9d1e9ae0a6eac4ba2df0884a15",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-11-06T12:27:12Z",
    "title_canon_sha256": "8b57932dd6a59fed9fdd390f76dac0afdc6b1230757782c2ff0af9f38de0feaf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.01856",
    "kind": "arxiv",
    "version": 1
  }
}