Pith Number

pith:PK2IAXLH

pith:2017:PK2IAXLH3XUDNE7VTUZKP3CLBR

not attested not anchored not stored refs pending

Asymmetric Type-Ia supernova origin of W49B as revealed from spatially resolved X-ray spectroscopic study

Jacco Vink, Ping Zhou

arxiv:1707.05107 v2 · 2017-07-17 · 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{PK2IAXLH3XUDNE7VTUZKP3CLBR}

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	2026-05-18T00:09:20.157703Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ab4805d67dde83693f59d32a7ec4b0c57c026529c78963775b2853799cbfe3b

Aliases

arxiv: 1707.05107 · arxiv_version: 1707.05107v2 · doi: 10.48550/arxiv.1707.05107 · pith_short_12: PK2IAXLH3XUD · pith_short_16: PK2IAXLH3XUDNE7V · pith_short_8: PK2IAXLH

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/PK2IAXLH3XUDNE7VTUZKP3CLBR \
  | 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: 7ab4805d67dde83693f59d32a7ec4b0c57c026529c78963775b2853799cbfe3b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51dcf86f1530664197bdf678c41948bb6be332e436ef8a031f6e3cee652098e6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-07-17T11:37:06Z",
    "title_canon_sha256": "3d4ca23923f85ab67d1d0612a2f1d9f11fffb06a051725c4ffff8894ace83d0d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.05107",
    "kind": "arxiv",
    "version": 2
  }
}