Pith Number

pith:YSL4BAIH

pith:2012:YSL4BAIHJQE4F2ADSCMQZ6NT4K

not attested not anchored not stored refs pending

Swift X-Ray Upper Limits on Type Ia Supernova Environments

Brock R. Russell, Stefan Immler

arxiv:1203.6629 v1 · 2012-03-29 · 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{YSL4BAIHJQE4F2ADSCMQZ6NT4K}

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	2026-05-18T03:59:02.016774Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c497c081074c09c2e80390990cf9b3e2bbfc91ec3caddc8c513512bfa93ddcaf

Aliases

arxiv: 1203.6629 · arxiv_version: 1203.6629v1 · doi: 10.48550/arxiv.1203.6629 · pith_short_12: YSL4BAIHJQE4 · pith_short_16: YSL4BAIHJQE4F2AD · pith_short_8: YSL4BAIH

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/YSL4BAIHJQE4F2ADSCMQZ6NT4K \
  | 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: c497c081074c09c2e80390990cf9b3e2bbfc91ec3caddc8c513512bfa93ddcaf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b70ad2f0739f8775ad04a39f7e1af11317575f27de08497b2f77e4d992854ed",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-03-29T19:09:16Z",
    "title_canon_sha256": "ec5b7647d9443ca7c3224f3e3b39996dc12e955c5d2459af2688246eb710c2a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.6629",
    "kind": "arxiv",
    "version": 1
  }
}