Pith Number

pith:FA62JBVK

pith:2005:FA62JBVKJ5A77TFIT3EFWSOX3E

not attested not anchored not stored refs pending

The Island state of the Atoll Source 4U 1820--30

A. Tiengo, Diego Altamirano, M. M\'endez, M. van der Klis, P.G. Jonker, S. Migliari, W. Zhang

arxiv:astro-ph/0507097 v1 · 2005-07-05 · 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{FA62JBVKJ5A77TFIT3EFWSOX3E}

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	2026-07-04T17:15:43.804846Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

283da486aa4f41ffcca89ec85b49d7d9390f2f605f5c4dcfc6ea0003d2c48928

Aliases

arxiv: astro-ph/0507097 · arxiv_version: astro-ph/0507097v1 · doi: 10.48550/arxiv.astro-ph/0507097 · pith_short_12: FA62JBVKJ5A7 · pith_short_16: FA62JBVKJ5A77TFI · pith_short_8: FA62JBVK

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/FA62JBVKJ5A77TFIT3EFWSOX3E \
  | 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: 283da486aa4f41ffcca89ec85b49d7d9390f2f605f5c4dcfc6ea0003d2c48928

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9bf35dffa241c197e070eeb9617ace0f7179de0976fc9d2aa0bab67038eb40c0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-07-05T14:12:11Z",
    "title_canon_sha256": "33a79e88890f569d4f355a8806c2260d21a6ab7af8dba7ba49e8c1639b0f58b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0507097",
    "kind": "arxiv",
    "version": 1
  }
}