Pith Number

pith:QDW3AR5M

pith:2021:QDW3AR5MNBSDV57RDWMZFBEWFI

not attested not anchored not stored refs pending

The Surface Magnetic Activity of the Weak-Line T Tauri Stars TWA 7 and TWA 25

B. A. Nicholson, B. D. Carter, C. P. Folsom, D. Wright, G. Hussain, J. -F. Donati, J. Okumura, R. Wittenmyer, the MaTYSSE collaboration

arxiv:2103.14052 v1 · 2021-03-25 · astro-ph.SR · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QDW3AR5MNBSDV57RDWMZFBEWFI}

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

Unstable magnetospheric accretion on the T Tauri star TW Hya

Receipt and verification

First computed	2026-07-05T02:26:29.971642Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80edb047ac68643af7f11d999284962a39678f82bdeb5ceb7e850c477a616bb3

Aliases

arxiv: 2103.14052 · arxiv_version: 2103.14052v1 · doi: 10.48550/arxiv.2103.14052 · pith_short_12: QDW3AR5MNBSD · pith_short_16: QDW3AR5MNBSDV57R · pith_short_8: QDW3AR5M

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/QDW3AR5MNBSDV57RDWMZFBEWFI \
  | 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: 80edb047ac68643af7f11d999284962a39678f82bdeb5ceb7e850c477a616bb3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ccaeac03ba97d1bebbd7eb9f4fddff9ee0d961f55b87dbf67cc35f82c7df6059",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-03-25T18:01:10Z",
    "title_canon_sha256": "140e8db6c45cde36e39537514d314526b21eb921dcb2e9086475c17579715e15"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.14052",
    "kind": "arxiv",
    "version": 1
  }
}