Pith Number

pith:O5YCXT4H

pith:2013:O5YCXT4H6FPGUHTQVILVY5EC7J

not attested not anchored not stored refs pending

Near-Infrared Spectroscopy of SN2009ip's 2012 Brightening Reveals a Dusty Pre-Supernova Environment

Adam J. Burgasser, Jon C. Mauerhan, Mansi M. Kasliwal, Nathan Smith

arxiv:1303.0304 v2 · 2013-03-01 · 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{O5YCXT4H6FPGUHTQVILVY5EC7J}

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	2026-05-18T01:51:17.981696Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77702bcf87f15e6a1e70aa175c7482fa64ece96f18ec6e9703bc5e13bd2f48bb

Aliases

arxiv: 1303.0304 · arxiv_version: 1303.0304v2 · doi: 10.48550/arxiv.1303.0304 · pith_short_12: O5YCXT4H6FPG · pith_short_16: O5YCXT4H6FPGUHTQ · pith_short_8: O5YCXT4H

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/O5YCXT4H6FPGUHTQVILVY5EC7J \
  | 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: 77702bcf87f15e6a1e70aa175c7482fa64ece96f18ec6e9703bc5e13bd2f48bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f79f651e22996e84677a0ae7112b5f3bbe37942a0249648f2f9b16011d53310",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-03-01T21:31:58Z",
    "title_canon_sha256": "1a62a39a97e10b26237fa41936c6f5210865996fd276f1db170b02bb8f0d2d0b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.0304",
    "kind": "arxiv",
    "version": 2
  }
}