Pith Number

pith:QM5XIR7L

pith:2020:QM5XIR7LBQNZGVLW2DBNPBWJBH

not attested not anchored not stored refs pending

The Bubble Nebula NGC 7635 -- testing the wind-blown bubble theory

G. Ramos-Larios, H. Todt, J.A. Toal\'a, L.M. Oskinova, L. Sabin, M.A. Guerrero, V.M.A. G\'omez-Gonz\'alez, Y.-H. Chu

arxiv:2003.06371 v1 · 2020-03-13 · 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{QM5XIR7LBQNZGVLW2DBNPBWJBH}

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	2026-07-05T00:58:50.330372Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

833b7447eb0c1b935576d0c2d786c909dde1a27f52242e59bdda75bc4214bb60

Aliases

arxiv: 2003.06371 · arxiv_version: 2003.06371v1 · doi: 10.48550/arxiv.2003.06371 · pith_short_12: QM5XIR7LBQNZ · pith_short_16: QM5XIR7LBQNZGVLW · pith_short_8: QM5XIR7L

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/QM5XIR7LBQNZGVLW2DBNPBWJBH \
  | 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: 833b7447eb0c1b935576d0c2d786c909dde1a27f52242e59bdda75bc4214bb60

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50f74256eb95c15acbbf7dd83f2f26ed96ac7226f9d8100e0663513d22f76aff",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-03-13T16:33:01Z",
    "title_canon_sha256": "f5093a7c07b27fcfcd4a106c692877ec7fe05de65ebc2d0d99a0c6f080023121"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.06371",
    "kind": "arxiv",
    "version": 1
  }
}