Pith Number

pith:6DI56IQW

pith:2021:6DI56IQW5LNHURHENOIAJF3DNL

not attested not anchored not stored refs pending

SN 2017hpa: A Nearby Carbon-Rich Type Ia Supernova with a Large Velocity Gradient

Alexei V. Filippenko, Ali Esamdin, Benjamin E. Stahl, Benjamin T. Jeffers, Craig Pellegrino, Curtis McCully, Daichi Hiramatsu, D. Andrew Howell, Danfeng Xiang, Edward A. Baron, Griffin Hosseinzadeh, Han Lin, James M. Derkacy, Jamison Burke, Jicheng Zhang, Jujia Zhang, Jun Mo, Lifan Wang, Samantha Stegman, Stefano Valenti, Thomas G. Brink, Tianmeng Zhang, Timothy W. Ross, Weikang Zheng, Wenxiong Li, Xiangyun Zeng, Xiaofeng Wang

arxiv:2101.08512 v1 · 2021-01-21 · 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{6DI56IQW5LNHURHENOIAJF3DNL}

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	2026-07-05T02:25:35.991947Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f0d1df2216eada7a44e46b900497636af19a5f82a112e0b80f0e5a7b02160ddb

Aliases

arxiv: 2101.08512 · arxiv_version: 2101.08512v1 · doi: 10.48550/arxiv.2101.08512 · pith_short_12: 6DI56IQW5LNH · pith_short_16: 6DI56IQW5LNHURHE · pith_short_8: 6DI56IQW

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/6DI56IQW5LNHURHENOIAJF3DNL \
  | 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: f0d1df2216eada7a44e46b900497636af19a5f82a112e0b80f0e5a7b02160ddb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a414cbc7942e87ef6faa37c5da444f9190020e309fe65c32f2f86fe8a4ffdc0a",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-01-21T09:39:03Z",
    "title_canon_sha256": "a36ac9bb21af4a95a57ad093f8156246649b7a608dc4b910663d1178a009f695"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.08512",
    "kind": "arxiv",
    "version": 1
  }
}