Pith Number

pith:YKTPCQNX

pith:2019:YKTPCQNX2TL5DSEOYEX2KEBOA5

not attested not anchored not stored refs pending

The Unexpected Spectrum of the Innermost Ejecta of the Red Hypergiant VY CMa

A. M. S. Richards, J. J. Bernal, Kazunori Ishibashi, L. Andrew Helton, L. M. Ziurys, Michael S. Gordon, Roberta M. Humphreys, Terry J. Jones, Wouter Vlemmings

arxiv:1903.08744 v1 · 2019-03-20 · 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{YKTPCQNX2TL5DSEOYEX2KEBOA5}

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	2026-05-17T23:49:01.443806Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c2a6f141b7d4d7d1c88ec12fa5102e0740667bc3deccad791d6d3c447c1b7fa7

Aliases

arxiv: 1903.08744 · arxiv_version: 1903.08744v1 · doi: 10.48550/arxiv.1903.08744 · pith_short_12: YKTPCQNX2TL5 · pith_short_16: YKTPCQNX2TL5DSEO · pith_short_8: YKTPCQNX

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/YKTPCQNX2TL5DSEOYEX2KEBOA5 \
  | 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: c2a6f141b7d4d7d1c88ec12fa5102e0740667bc3deccad791d6d3c447c1b7fa7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96165931fdf00f559ea48cb24dbe9cf54369214fb354a858327f15e66f71e219",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-03-20T21:09:49Z",
    "title_canon_sha256": "6cc33cb77a1f145a88478613172d6baee7c048d574a4b119ccb4b62c9902f3d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.08744",
    "kind": "arxiv",
    "version": 1
  }
}