Pith Number

pith:4DFQUEZ2

pith:2019:4DFQUEZ2DJSXPPDLBVSS2NZKMC

not attested not anchored not stored refs pending

CSI2264: Simultaneous optical and X-ray variability in the pre-main sequence stars of NGC2264. II: Photometric variability, magnetic activity, and rotation in classIII objects and stars with transition disks

A. M. Cody, C. Argiroffi, E. Flaccomio, G. Micela, J. Stauffer, L. Rebull, L. Venuti, M. G. Guarcello, S. Sciortino

arxiv:1907.04030 v1 · 2019-07-09 · 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{4DFQUEZ2DJSXPPDLBVSS2NZKMC}

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	2026-07-04T23:55:46.246266Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0cb0a133a1a6577bc6b0d652d372a60b07eb1e97306d704a237ffb4b2cc1c53

Aliases

arxiv: 1907.04030 · arxiv_version: 1907.04030v1 · doi: 10.48550/arxiv.1907.04030 · pith_short_12: 4DFQUEZ2DJSX · pith_short_16: 4DFQUEZ2DJSXPPDL · pith_short_8: 4DFQUEZ2

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/4DFQUEZ2DJSXPPDLBVSS2NZKMC \
  | 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: e0cb0a133a1a6577bc6b0d652d372a60b07eb1e97306d704a237ffb4b2cc1c53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb9bf124f0bd01fab95179ecaacc983597e87d56f0b19add3fa9ea5e0dcc3f50",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-07-09T07:54:23Z",
    "title_canon_sha256": "b46e03aa60feb1e3faf80810984ca75db3a45233acb1e4f7cdc7c2b01cef1eba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.04030",
    "kind": "arxiv",
    "version": 1
  }
}