Pith Number

pith:IRF727HJ

pith:2026:IRF727HJZD6CGROSVGQDUHFC5N

not attested not anchored not stored refs pending

The Stellar Observations Network Group (SONG) -- A Legacy Archive of Stellar Time-Domain Spectroscopy

A. N. S{\o}rensen, D. J. Wright, E. Corsaro, E. Weiss, F. Grundahl, H. Kjeldsen, H. Korhonen, J. A. Holtzman, J. Christensen-Dalsgaard, J. Jackiewicz, J. Jessen-Hansen, J. Klusmeyer, J. L. R{\o}rsted, J. Rudrasingam, K. Wang, L. Deng, M. Bizzarro, M. I. Andersen, M. J. Mart\'inez Gonz\'alez, M. N. Lund, M. S. Fredslund, P. G. Beck, P. Heeren, P. Kj{\ae}rgaard, P. L. Pall\'e, P. M. S{\o}rensen, R. A. Garc\'ia, R. A. Wittenmyer, R. Handberg, R. P. Butler, R. Tronsgaard, S. Frandsen, S. H. Albrecht, S. Simon-Diaz, T. Arentoft, T. R. Bedding, U. G. J{\o}rgensen, V. Antoci

arxiv:2607.02775 v1 · 2026-07-02 · astro-ph.SR · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IRF727HJZD6CGROSVGQDUHFC5N}

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	2026-07-07T00:16:16.790579Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

444bfd7ce9c8fc2345d2a9a03a1ca2eb74f42ffb84dbe06e2e509ae985bf282f

Aliases

arxiv: 2607.02775 · arxiv_version: 2607.02775v1 · doi: 10.48550/arxiv.2607.02775 · pith_short_12: IRF727HJZD6C · pith_short_16: IRF727HJZD6CGROS · pith_short_8: IRF727HJ

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/IRF727HJZD6CGROSVGQDUHFC5N \
  | 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: 444bfd7ce9c8fc2345d2a9a03a1ca2eb74f42ffb84dbe06e2e509ae985bf282f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d427081f9766c8024792f05dbaeca5635c4315fa7fe14003592583bc558eb6f0",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2026-07-02T21:15:13Z",
    "title_canon_sha256": "f4b7959288220b96af7daa9d1d3f5341cd59c2be70968a2f0bffa99a214cd3ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.02775",
    "kind": "arxiv",
    "version": 1
  }
}