Pith Number

pith:VGZUJHTB

pith:2022:VGZUJHTBTLC6DM6T4XM3URJNTK

not attested not anchored not stored refs pending

The circumstellar material around the Type IIP SN 2021yja

Alexandra Kozyreva, Alexei V. Filippenko, Alexey Mironov, Andrea Chiavassa, Jakub Klencki, Petr Baklanov, Stephen Justham

arxiv:2207.09976 v2 · 2022-07-20 · astro-ph.HE · 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{VGZUJHTBTLC6DM6T4XM3URJNTK}

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	2026-07-05T04:48:59.814094Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9b3449e619ac5e1b3d3e5d9ba452d9ab9356271c04ae7d5aba2edc8dd19c2ef

Aliases

arxiv: 2207.09976 · arxiv_version: 2207.09976v2 · doi: 10.48550/arxiv.2207.09976 · pith_short_12: VGZUJHTBTLC6 · pith_short_16: VGZUJHTBTLC6DM6T · pith_short_8: VGZUJHTB

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/VGZUJHTBTLC6DM6T4XM3URJNTK \
  | 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: a9b3449e619ac5e1b3d3e5d9ba452d9ab9356271c04ae7d5aba2edc8dd19c2ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c81bf29cf044611656489b297044a10c19aec6dbebf86217309436db1f2366e",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2022-07-20T15:36:58Z",
    "title_canon_sha256": "d995cae0ed310f497d385e05e9a2ea11625333610df7a520dd9985a238faf47e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2207.09976",
    "kind": "arxiv",
    "version": 2
  }
}