Pith Number

pith:DDAZ6YNV

pith:2013:DDAZ6YNVOB6ZIC6ZJ6CGYL3D6P

not attested not anchored not stored refs pending

The optical photometric and spectroscopic investigation of Type IIP supernova 2012A

Adam Ritchey, Brajesh Kumar, Brian York, Brijesh Kumar, Don York, Firoza Sutaria, Gabrielle Saurage, Mary Beth Kaiser, Rupak Roy, Sayan Chakraborti, Sean Johnson, Subhash Bose, Vijay K. Bhatt, Vikram Dwarkadas

arxiv:1304.2457 v1 · 2013-04-09 · 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{DDAZ6YNVOB6ZIC6ZJ6CGYL3D6P}

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	2026-05-18T01:50:41.322761Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18c19f61b5707d940bd94f846c2f63f3e1f138bc6e12de1d9fcd63c150ea313a

Aliases

arxiv: 1304.2457 · arxiv_version: 1304.2457v1 · doi: 10.48550/arxiv.1304.2457 · pith_short_12: DDAZ6YNVOB6Z · pith_short_16: DDAZ6YNVOB6ZIC6Z · pith_short_8: DDAZ6YNV

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/DDAZ6YNVOB6ZIC6ZJ6CGYL3D6P \
  | 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: 18c19f61b5707d940bd94f846c2f63f3e1f138bc6e12de1d9fcd63c150ea313a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b01e22f199ba0e44339bf3b9d71f4253c5b7f3c64bd81c2963a0dac0861f1b9",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-04-09T05:15:57Z",
    "title_canon_sha256": "991bffe4386dfc30c116f53ce9ffaa236b886f371eb838339cddc0f9f4b42997"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.2457",
    "kind": "arxiv",
    "version": 1
  }
}