Pith Number

pith:QP7BSTWX

pith:2021:QP7BSTWXQJQT7GZ6NE22X2VZNY

not attested not anchored not stored refs pending

Multicolor Variability of Young Stars in the Lagoon Nebula: Driving Causes and Intrinsic Timescales

Ann Marie Cody, Geert Barentsen, Giacomo Beccari, Laura Venuti, Luisa M. Rebull, Mike Irwin, Sowmya Thanvantri, Steve B. Howell

arxiv:2105.11588 v1 · 2021-05-25 · 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{QP7BSTWXQJQT7GZ6NE22X2VZNY}

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	2026-07-05T03:08:30.746148Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83fe194ed782613f9b3e6935abeab96e1de1f0dd6a3b816f23f7714586835f32

Aliases

arxiv: 2105.11588 · arxiv_version: 2105.11588v1 · doi: 10.48550/arxiv.2105.11588 · pith_short_12: QP7BSTWXQJQT · pith_short_16: QP7BSTWXQJQT7GZ6 · pith_short_8: QP7BSTWX

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/QP7BSTWXQJQT7GZ6NE22X2VZNY \
  | 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: 83fe194ed782613f9b3e6935abeab96e1de1f0dd6a3b816f23f7714586835f32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a9ad3e48f6dbf633a408ca8db1ec5ca8f8820f9f36f81c871d0b0266c0464fa8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-05-25T00:11:53Z",
    "title_canon_sha256": "48650ce401a2a8a0226fe035a364d550cf9f0d4e4935ffeefeee957f547925d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.11588",
    "kind": "arxiv",
    "version": 1
  }
}