Pith Number

pith:27MXVL7B

pith:2019:27MXVL7BMRZRK2IFW7CDCTBQ2K

not attested not anchored not stored refs pending

Lens modelling of the strongly lensed Type Ia supernova iPTF16geu

A. Goobar, D.A. Goldstein, E. M\"ortsell, J. Johansson, R. Amanullah, S. Dhawan

arxiv:1907.06609 v2 · 2019-07-15 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{27MXVL7BMRZRK2IFW7CDCTBQ2K}

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	2026-07-05T01:10:26.747413Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7d97aafe16473156905b7c4314c30d28e9f29b3d50ec49af5e5319a0f6f0acb

Aliases

arxiv: 1907.06609 · arxiv_version: 1907.06609v2 · doi: 10.48550/arxiv.1907.06609 · pith_short_12: 27MXVL7BMRZR · pith_short_16: 27MXVL7BMRZRK2IF · pith_short_8: 27MXVL7B

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/27MXVL7BMRZRK2IFW7CDCTBQ2K \
  | 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: d7d97aafe16473156905b7c4314c30d28e9f29b3d50ec49af5e5319a0f6f0acb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39dbded66067e87e22a7fcc9fe718c2e6244b7349d097fca28ffeda7e9d6bc35",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2019-07-15T17:13:22Z",
    "title_canon_sha256": "fbdb869ab7011534f5f320f3a481538a64cab89d75b9ce12d701330f6d55a85e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.06609",
    "kind": "arxiv",
    "version": 2
  }
}