Pith Number

pith:Q2NQRSS5

pith:2021:Q2NQRSS5G7UPL4XITHW5GISCRR

not attested not anchored not stored refs pending

Maser emission from the CO envelope of the asymptotic giant branch star W Hydrae

D. Tafoya, T. Khouri, W.H.T. Vlemmings

arxiv:2109.05048 v1 · 2021-09-10 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q2NQRSS5G7UPL4XITHW5GISCRR}

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	2026-07-05T03:19:21.899532Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

869b08ca5d37e8f5f2e899edd322428c4cc78142a6c605c4ba3ebe6cf03996cc

Aliases

arxiv: 2109.05048 · arxiv_version: 2109.05048v1 · doi: 10.48550/arxiv.2109.05048 · pith_short_12: Q2NQRSS5G7UP · pith_short_16: Q2NQRSS5G7UPL4XI · pith_short_8: Q2NQRSS5

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/Q2NQRSS5G7UPL4XITHW5GISCRR \
  | 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: 869b08ca5d37e8f5f2e899edd322428c4cc78142a6c605c4ba3ebe6cf03996cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "247387c73ab0f47369d6787bbd93897594fddf9a86013cca69defd56dfe6aa98",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-09-10T18:11:42Z",
    "title_canon_sha256": "08b6bf6184fc64af258fe35eaea4ce24e5abad01d7699688f24fb7dd88be3347"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.05048",
    "kind": "arxiv",
    "version": 1
  }
}