Pith Number

pith:EQTFU2WI

pith:2011:EQTFU2WIT7XNE4IPIYKWGQ4E5I

not attested not anchored not stored refs pending

Spectroscopic evidence for SN 2010ma associated with GRB 101219B

A. de Ugarte Postigo, A.J. Levan, B. Milvang-Jensen, D.J. Watson, D. Malesani, F. Hammer, G. Leloudas, G. Tagliaferri, H. Flores, J. Hjorth, J.P.U. Fynbo, J. Sollerman, K. Wiersema, L. Kaper, M. Sparre, N.R. Tanvir, P. Goldoni, P. Jakobsson, R.A.M.J. Wijers, S. Covino, S. Schulze, V. D'Elia

arxiv:1105.0422 v3 · 2011-05-02 · 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{EQTFU2WIT7XNE4IPIYKWGQ4E5I}

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	2026-05-18T04:19:21.557052Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24265a6ac89feed2710f4615634384ea03f74718c1701aa89a32681c09573a59

Aliases

arxiv: 1105.0422 · arxiv_version: 1105.0422v3 · doi: 10.48550/arxiv.1105.0422 · pith_short_12: EQTFU2WIT7XN · pith_short_16: EQTFU2WIT7XNE4IP · pith_short_8: EQTFU2WI

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/EQTFU2WIT7XNE4IPIYKWGQ4E5I \
  | 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: 24265a6ac89feed2710f4615634384ea03f74718c1701aa89a32681c09573a59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ce02369bf03b8ec0773c4fd0055e93bb8a0dd32b80f142c17759c67ce7ee219",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-05-02T20:00:00Z",
    "title_canon_sha256": "9160de7a70314621353e300adc34ee8f65dd869b511ef7b022b202a6080395e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.0422",
    "kind": "arxiv",
    "version": 3
  }
}