Pith Number

pith:FYRDIX5A

pith:1994:FYRDIX5A4KKD3WGALRR3DW6V3X

not attested not anchored not stored refs pending

Photometric and H$\alpha$ observations of LSI+61303: detection of a $\sim$26 day V and JHK band modulation

A. J. Norton, C. Everall, C. Jordi, F. Figueras, J. Fabregat, J. Marti, J. M. Paredes, J. Torra, M. J. Coe, P. Marziani, P. Roche, R. Zamanov, S. J. Unger, T. Prince, V. Reglero

arxiv:astro-ph/9402016 v1 · 1994-02-07 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FYRDIX5A4KKD3WGALRR3DW6V3X}

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	2026-07-04T14:14:27.414999Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e22345fa0e2943dd8c05c63b1dbd5ddf85eee2b681b5047bcb17d33da822c9d

Aliases

arxiv: astro-ph/9402016 · arxiv_version: astro-ph/9402016v1 · doi: 10.48550/arxiv.astro-ph/9402016 · pith_short_12: FYRDIX5A4KKD · pith_short_16: FYRDIX5A4KKD3WGA · pith_short_8: FYRDIX5A

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/FYRDIX5A4KKD3WGALRR3DW6V3X \
  | 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: 2e22345fa0e2943dd8c05c63b1dbd5ddf85eee2b681b5047bcb17d33da822c9d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4da4cd716fd44873cf2c2665c21d66af9d071f34c0364363ab6a62ac24cc4157",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1994-02-07T12:20:55Z",
    "title_canon_sha256": "95066ee382eb8afa82c06a0d016b71cbe536674a4984611a8fb66537066a504d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9402016",
    "kind": "arxiv",
    "version": 1
  }
}