Pith Number

pith:F7ZBWPYO

pith:2021:F7ZBWPYOOD3BPIEGYQLKHOFIVU

not attested not anchored not stored refs pending

Kinematics, structure and abundances of supernova remnant 0540-69.3

N. Lundqvist, P. Lundqvist, Yu. A. Shibanov

arxiv:2109.03287 v1 · 2021-09-07 · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F7ZBWPYOOD3BPIEGYQLKHOFIVU}

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	2026-07-05T03:53:04.107037Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ff21b3f0e70f617a086c416a3b8a8ad1ffafdfb972bf86c5a74286fdd30b4f4

Aliases

arxiv: 2109.03287 · arxiv_version: 2109.03287v1 · doi: 10.48550/arxiv.2109.03287 · pith_short_12: F7ZBWPYOOD3B · pith_short_16: F7ZBWPYOOD3BPIEG · pith_short_8: F7ZBWPYO

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/F7ZBWPYOOD3BPIEGYQLKHOFIVU \
  | 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: 2ff21b3f0e70f617a086c416a3b8a8ad1ffafdfb972bf86c5a74286fdd30b4f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53c6d47dba69f098d56f683b39ecad5ce39b9db1be5208d4b846d686dbf21e30",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-09-07T18:51:12Z",
    "title_canon_sha256": "f2068b360505107fc7e2284ee41dbbf529f8e0284f569833e11d9acbe3ad9b3c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.03287",
    "kind": "arxiv",
    "version": 1
  }
}