Pith Number

pith:SIPPSQ4I

pith:2018:SIPPSQ4IMB2NE6CXR26WL2K2DY

not attested not anchored not stored refs pending

S Coronae Australis -- a T Tauri Twin

Eric C. Stempels, Frederick M. Walter, G\"osta F. Gahm, Larisa V. Tambovtseva, Peter P. Petrov, Vladimir P. Grinin

arxiv:1804.04971 v1 · 2018-04-13 · 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{SIPPSQ4IMB2NE6CXR26WL2K2DY}

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	2026-05-18T00:12:17.592933Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

921ef943886074d278578ebd65e95a1e062902574c3c7c1eabb70f6ae06bc408

Aliases

arxiv: 1804.04971 · arxiv_version: 1804.04971v1 · doi: 10.48550/arxiv.1804.04971 · pith_short_12: SIPPSQ4IMB2N · pith_short_16: SIPPSQ4IMB2NE6CX · pith_short_8: SIPPSQ4I

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/SIPPSQ4IMB2NE6CXR26WL2K2DY \
  | 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: 921ef943886074d278578ebd65e95a1e062902574c3c7c1eabb70f6ae06bc408

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "888c5db4159b70f33ec3ea7666aa2f8d1f9432c147fd14ffa88ebed138f8d266",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-04-13T14:47:56Z",
    "title_canon_sha256": "ce359e01bde3315b3488d32f0c69e8aed6a13ef78c5a71cd83ec35f8ec7bcb53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.04971",
    "kind": "arxiv",
    "version": 1
  }
}