Pith Number

pith:U7ONN7HD

pith:2021:U7ONN7HDLF7D5ELTRCQ667TMXF

not attested not anchored not stored refs pending

An environmental analysis of the Type Ib SN 2019yvr and the possible presence of an inflated binary companion

Amir Kashapov, Emmanouil Zapartas, Ji-Feng Liu, Justyn R. Maund, Liang-Duan Liu, Ning-Chen Sun, Paul A. Crowther, Ryosuke Hirai

arxiv:2111.06471 v2 · 2021-11-11 · 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{U7ONN7HDLF7D5ELTRCQ667TMXF}

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	2026-07-05T03:45:53.787135Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7dcd6fce3597e3e917388a1ef7e6cb962dabce6add04382a4404ac719e2fea7

Aliases

arxiv: 2111.06471 · arxiv_version: 2111.06471v2 · doi: 10.48550/arxiv.2111.06471 · pith_short_12: U7ONN7HDLF7D · pith_short_16: U7ONN7HDLF7D5ELT · pith_short_8: U7ONN7HD

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/U7ONN7HDLF7D5ELTRCQ667TMXF \
  | 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: a7dcd6fce3597e3e917388a1ef7e6cb962dabce6add04382a4404ac719e2fea7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e9c8670a39893580c1a81c6aa73859a130d0c6f297362313b124d199f9accf6",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-11-11T21:41:08Z",
    "title_canon_sha256": "c84a7226c3a6d9541ce9ca6b5163912e788107df3794c98dd99de3f13aaa9f2f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.06471",
    "kind": "arxiv",
    "version": 2
  }
}