Pith Number

pith:TTU6X4UM

pith:2023:TTU6X4UM46RFJBPMMO4FL2XZCW

not attested not anchored not stored refs pending

The IACOB project IX. Building a modern empirical database of Galactic O9-B9 supergiants: sample selection, description, and completeness

Abel de Burgos, Ignacio Negueruela, Miguel A. Urbaneja, Sergio Sim\'on-D\'iaz

arxiv:2305.00305 v2 · 2023-04-29 · astro-ph.SR · astro-ph.GA · 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{TTU6X4UM46RFJBPMMO4FL2XZCW}

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.

Cited by

1 paper in Pith

Characterization of the variability of the blue supergiant HD 14134

Receipt and verification

First computed	2026-07-05T06:25:28.936429Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ce9ebf28ce7a25485ec63b855eaf915b5b26b08d719a2571f9babe74d328c5a

Aliases

arxiv: 2305.00305 · arxiv_version: 2305.00305v2 · doi: 10.48550/arxiv.2305.00305 · pith_short_12: TTU6X4UM46RF · pith_short_16: TTU6X4UM46RFJBPM · pith_short_8: TTU6X4UM

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/TTU6X4UM46RFJBPMMO4FL2XZCW \
  | 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: 9ce9ebf28ce7a25485ec63b855eaf915b5b26b08d719a2571f9babe74d328c5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd9c49e4fc3507920a42a5fade7aeb9b28f25f86b1636e30afea20978e6a5238",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2023-04-29T17:21:44Z",
    "title_canon_sha256": "c901d6c97906b5c58248663f0b5e62871661d86ff5c614cf6c453cf5edfec2ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2305.00305",
    "kind": "arxiv",
    "version": 2
  }
}