Pith Number

pith:3TZG2IUV

pith:2018:3TZG2IUVMFKCADBSNSVTSYMAKZ

not attested not anchored not stored refs pending

Don't Blink: Constraining the Circumstellar Environment of the Interacting Type Ia Supernova 2015cp

A. Goobar, A. Horesh, A. V. Filippenko, C. E. Harris, J. S. Bright, K. J. Shen, K. Maguire, M. L. Graham, M. Smith, N. Butler, O. Fox, P. E. Nugent, P. L. Kelly, R. P. Fender, S. Valenti

arxiv:1812.02756 v1 · 2018-12-06 · 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{3TZG2IUVMFKCADBSNSVTSYMAKZ}

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	2026-05-17T23:58:51.944312Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dcf26d22956154200c326cab3961805645df7e4fa303e4e0e5a75d0f9245f015

Aliases

arxiv: 1812.02756 · arxiv_version: 1812.02756v1 · doi: 10.48550/arxiv.1812.02756 · pith_short_12: 3TZG2IUVMFKC · pith_short_16: 3TZG2IUVMFKCADBS · pith_short_8: 3TZG2IUV

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/3TZG2IUVMFKCADBSNSVTSYMAKZ \
  | 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: dcf26d22956154200c326cab3961805645df7e4fa303e4e0e5a75d0f9245f015

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5733623c68c8b0ea611c57c7b5616606a9431c2e88573354206075260198b311",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-12-06T19:01:10Z",
    "title_canon_sha256": "114a361af9c2f27cd6d097a5475eb6813c105a482735122bb849707107deccda"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.02756",
    "kind": "arxiv",
    "version": 1
  }
}