Pith Number

pith:JW4CU2XI

pith:2026:JW4CU2XIWDCSFGDPA4CBNENLVM

not attested not anchored not stored refs pending

Near-Infrared Observations of BD+44 493 with IGRINS-2

Vinicius M. Placco, William D. Vacca

arxiv:2607.13201 v1 · 2026-07-14 · 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{JW4CU2XIWDCSFGDPA4CBNENLVM}

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	2026-07-16T00:22:02.598371Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4db82a6ae8b0c522986f07041691abab29f3178741a990bf29cc678b86f3e130

Aliases

arxiv: 2607.13201 · arxiv_version: 2607.13201v1 · doi: 10.48550/arxiv.2607.13201 · pith_short_12: JW4CU2XIWDCS · pith_short_16: JW4CU2XIWDCSFGDP · pith_short_8: JW4CU2XI

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/JW4CU2XIWDCSFGDPA4CBNENLVM \
  | 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: 4db82a6ae8b0c522986f07041691abab29f3178741a990bf29cc678b86f3e130

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec4c251ea7da7155fd152780290f71557c66d48f1a2e9f0787537f60339b5cb6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2026-07-14T18:51:52Z",
    "title_canon_sha256": "27e10eaeb2b3a7d50af42691372d1e8816221b1ef3e6994d277cb0430240a93a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.13201",
    "kind": "arxiv",
    "version": 1
  }
}