Pith Number

pith:UGNRVSJR

pith:2010:UGNRVSJR5CXVGFH6G2UJDTPJYU

not attested not anchored not stored refs pending

Unveiling the nature of IGR J16493-4348 with IR spectroscopy

E. Nespoli, J. Fabregat, R. E. Mennickent

arxiv:1004.4101 v1 · 2010-04-23 · 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{UGNRVSJR5CXVGFH6G2UJDTPJYU}

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	2026-05-18T02:07:54.685090Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a19b1ac931e8af5314fe36a891cde9c51aa1a186e665236c35e8d93ded3748b8

Aliases

arxiv: 1004.4101 · arxiv_version: 1004.4101v1 · doi: 10.48550/arxiv.1004.4101 · pith_short_12: UGNRVSJR5CXV · pith_short_16: UGNRVSJR5CXVGFH6 · pith_short_8: UGNRVSJR

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/UGNRVSJR5CXVGFH6G2UJDTPJYU \
  | 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: a19b1ac931e8af5314fe36a891cde9c51aa1a186e665236c35e8d93ded3748b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af6784a1cb2bea73c4a08fb4e74a0e195aae91c55404cf019f4660a72e7d0269",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2010-04-23T11:25:47Z",
    "title_canon_sha256": "5fef09ab6b461bc216ca7baf98f4fea5547346661493eda1d284feb02ea885cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.4101",
    "kind": "arxiv",
    "version": 1
  }
}