Pith Number

pith:R2WHWCZW

pith:2020:R2WHWCZWW2A2WPS3NNJ7GB63GE

not attested not anchored not stored refs pending

Reddening-free Q indices to identify Be star candidates

Carlos Escudero, Facundo Quiroga, Franco Ronchetti, Laura Lanzarini, Yael Aidelman

arxiv:2009.06017 v1 · 2020-09-13 · 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{R2WHWCZWW2A2WPS3NNJ7GB63GE}

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	2026-07-05T01:35:03.669072Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8eac7b0b36b681ab3e5b6b53f307db311c6278eff9b995ba01d677d6f5f89a74

Aliases

arxiv: 2009.06017 · arxiv_version: 2009.06017v1 · doi: 10.48550/arxiv.2009.06017 · pith_short_12: R2WHWCZWW2A2 · pith_short_16: R2WHWCZWW2A2WPS3 · pith_short_8: R2WHWCZW

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/R2WHWCZWW2A2WPS3NNJ7GB63GE \
  | 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: 8eac7b0b36b681ab3e5b6b53f307db311c6278eff9b995ba01d677d6f5f89a74

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e46c12c58e52005b82d95214128d13d442b4a7864060f20a29fb8178c056dac7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-09-13T15:13:54Z",
    "title_canon_sha256": "1116cfe7e915f5a47615ca56137ddfe70871fec6dcf690bc0d6699c120f2e3c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.06017",
    "kind": "arxiv",
    "version": 1
  }
}