Pith Number

pith:Q4NDHXUF

pith:2016:Q4NDHXUFS7XFZWIQ4QA5L5PHTE

not attested not anchored not stored refs pending

Optical Observations of the Type Ia Supernova 2011fe in M101 for Nearly 500 Days

Alexei V. Filippenko, Chao Wu, Fang Huang, Hanna Sai, Hao Song, Jia Chen, Jinming Bai, Jujia Zhang, Juncheng Chen, Jun Mo, Kaicheng Zhang, Lifan Wang, Liming Rui, Mohan Ganeshalingam, Tianmeng Zhang, Weidong Li, Weikang Zheng, Wenxiong Li, Xiaofeng Wang, Xulin Zhao

arxiv:1602.02951 v1 · 2016-02-09 · 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{Q4NDHXUFS7XFZWIQ4QA5L5PHTE}

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	2026-05-18T01:17:41.553139Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

871a33de8597ee5cd910e401d5f5e7991c9f721b4ceee571bfd68dc4d44a1425

Aliases

arxiv: 1602.02951 · arxiv_version: 1602.02951v1 · doi: 10.48550/arxiv.1602.02951 · pith_short_12: Q4NDHXUFS7XF · pith_short_16: Q4NDHXUFS7XFZWIQ · pith_short_8: Q4NDHXUF

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/Q4NDHXUFS7XFZWIQ4QA5L5PHTE \
  | 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: 871a33de8597ee5cd910e401d5f5e7991c9f721b4ceee571bfd68dc4d44a1425

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac281669bde0a24b219f727c81de1272e4f4266ab7808b47f5ce44045b939e0d",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2016-02-09T12:05:02Z",
    "title_canon_sha256": "84ae94de4889d5f7ab1a16519cca9638b549ee73abdb495203dc2376bcaeab96"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.02951",
    "kind": "arxiv",
    "version": 1
  }
}