Pith Number

pith:7RK37WCB

pith:2021:7RK37WCBTFXKEOBKA3XNG2AXE5

not attested not anchored not stored refs pending

LkH$\alpha$ 225 (V1318 Cyg) South in Outburst

Antonio C. Rodriguez, Bo Reipurth, Diego Rodriguez Perez, Howard Isaacson, Lynne A. Hillenbrand, Michael A. Kuhn, Michael Connelley, Tracy Beck

arxiv:2108.05406 v2 · 2021-08-11 · 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{7RK37WCBTFXKEOBKA3XNG2AXE5}

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	2026-07-05T03:56:48.712428Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc55bfd841996ea2382a06eed36817274e39a927fe1e7d875d4b0b4f2d075c5e

Aliases

arxiv: 2108.05406 · arxiv_version: 2108.05406v2 · doi: 10.48550/arxiv.2108.05406 · pith_short_12: 7RK37WCBTFXK · pith_short_16: 7RK37WCBTFXKEOBK · pith_short_8: 7RK37WCB

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/7RK37WCBTFXKEOBKA3XNG2AXE5 \
  | 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: fc55bfd841996ea2382a06eed36817274e39a927fe1e7d875d4b0b4f2d075c5e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8ab7c73a78ae989834552648c5674bd7b583dd5b6e741e3e1fd29786c9b69ad",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-08-11T18:45:22Z",
    "title_canon_sha256": "34e816a9c545ac91b2bb7db42dfd9c7ba4e0cce3de2215544b0b97010ca29062"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.05406",
    "kind": "arxiv",
    "version": 2
  }
}