Pith Number

pith:HQXIFJDI

pith:2020:HQXIFJDIJY4SB2BJVR3KXRXKCS

not attested not anchored not stored refs pending

Wind-envelope interaction as the origin of the slow cyclic brightness variations of luminous blue variables

Andreas Sander, Goetz Graefener, Jonathan Mackey, Jorick Vink, Luca Grassitelli, Nathan Grin, Norbert Langer

arxiv:2012.00023 v2 · 2020-11-30 · astro-ph.SR · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HQXIFJDIJY4SB2BJVR3KXRXKCS}

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	2026-07-05T02:23:50.053328Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c2e82a4684e3920e829ac76abc6ea148525504119e48d2d99d4fca945f179bf

Aliases

arxiv: 2012.00023 · arxiv_version: 2012.00023v2 · doi: 10.48550/arxiv.2012.00023 · pith_short_12: HQXIFJDIJY4S · pith_short_16: HQXIFJDIJY4SB2BJ · pith_short_8: HQXIFJDI

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/HQXIFJDIJY4SB2BJVR3KXRXKCS \
  | 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: 3c2e82a4684e3920e829ac76abc6ea148525504119e48d2d99d4fca945f179bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29d70652b38eb071cf77cc6e752e0b7456388e4e2e5d2d3a9edbda7ac1f430d5",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-11-30T19:00:05Z",
    "title_canon_sha256": "7ae64cbceeb5a1724e6b3b6f260a8609f2182545bbffbb5953c26e197108cfc5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.00023",
    "kind": "arxiv",
    "version": 2
  }
}