Pith Number

pith:2U4PWMTK

pith:2011:2U4PWMTK63MSBZ4BNS26LSJ2L5

not attested not anchored not stored refs pending

A Study of Carbon Features in Type Ia Supernova Spectra

Dan Milisavljevic, G. H. Marion, J. Craig Wheeler, Jerod T. Parrent, J\`ozsef Vink\`o, Peter Challis, Peter M. Garnavich, R. C. Thomas, Robert A. Fesen

arxiv:1103.1671 v1 · 2011-03-09 · astro-ph.HE · 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{2U4PWMTK63MSBZ4BNS26LSJ2L5}

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	2026-05-18T02:02:56.123537Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d538fb326af6d920e7816cb5e5c93a5f5f3ff1c44b7e411d3f53f698b47a0194

Aliases

arxiv: 1103.1671 · arxiv_version: 1103.1671v1 · doi: 10.48550/arxiv.1103.1671 · pith_short_12: 2U4PWMTK63MS · pith_short_16: 2U4PWMTK63MSBZ4B · pith_short_8: 2U4PWMTK

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/2U4PWMTK63MSBZ4BNS26LSJ2L5 \
  | 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: d538fb326af6d920e7816cb5e5c93a5f5f3ff1c44b7e411d3f53f698b47a0194

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39f97996fc8fc2f810c42dd1fb56aa2c3becbaceff743166a074061c016e3d01",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-03-09T00:18:31Z",
    "title_canon_sha256": "e8a0eda99394fec024b0416ef5ae14e8c9e137056a061e1b00a1ff676545e9d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.1671",
    "kind": "arxiv",
    "version": 1
  }
}