Pith Number

pith:2ZJWV25I

pith:2026:2ZJWV25ICV6IF6Q66TMKVEFQ2M

not attested not anchored not stored refs pending

Optical observations on the young Type Ia SN 2021fxy with detached high velocity features

Bo Wang, Jinming Bai, Jujia Zhang, Liping Li, Qian Zhai, Shengyu Yan, Xiaofeng Wang, Zhenyu Wang

arxiv:2607.17510 v1 · 2026-07-20 · 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{2ZJWV25ICV6IF6Q66TMKVEFQ2M}

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	2026-07-21T01:21:49.655154Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6536aeba8157c82fa1ef4d8aa90b0d30ddb806c0db3d4fa9e2ec1a677873cb3

Aliases

arxiv: 2607.17510 · arxiv_version: 2607.17510v1 · doi: 10.48550/arxiv.2607.17510 · pith_short_12: 2ZJWV25ICV6I · pith_short_16: 2ZJWV25ICV6IF6Q6 · pith_short_8: 2ZJWV25I

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/2ZJWV25ICV6IF6Q66TMKVEFQ2M \
  | 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: d6536aeba8157c82fa1ef4d8aa90b0d30ddb806c0db3d4fa9e2ec1a677873cb3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b85eb5036838095aa91b71abd9098ce381d2c5cb6bcf3a8bfd60dc2c8eb1f6a",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2026-07-20T03:33:33Z",
    "title_canon_sha256": "9eb5ef093424dddca22e74c0fe718dc8b2af8ff4b2f2068195d2af403a1ae9d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.17510",
    "kind": "arxiv",
    "version": 1
  }
}