Pith Number

pith:PUA4TSQJ

pith:2002:PUA4TSQJ2CABKUZOODP63XGY46

not attested not anchored not stored refs pending

Evolution of a low frequency QPO during the 2000 outburst of XTE J1550-564

E. Kalemci, J.A. Tomsick, J. Rodriguez, M. Tagger, S. Corbel

arxiv:astro-ph/0207649 v1 · 2002-07-30 · 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{PUA4TSQJ2CABKUZOODP63XGY46}

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	2026-05-18T01:07:44.594038Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d01c9ca09d08015532e70dfeddcd8e78b734b750b62cbbc3bcf0f78f28358c3

Aliases

arxiv: astro-ph/0207649 · arxiv_version: astro-ph/0207649v1 · doi: 10.48550/arxiv.astro-ph/0207649 · pith_short_12: PUA4TSQJ2CAB · pith_short_16: PUA4TSQJ2CABKUZO · pith_short_8: PUA4TSQJ

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/PUA4TSQJ2CABKUZOODP63XGY46 \
  | 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: 7d01c9ca09d08015532e70dfeddcd8e78b734b750b62cbbc3bcf0f78f28358c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94e88403e23158c23cb6d5369a81ecc020bdb7f0892ccb8aff974cb92d872698",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-07-30T10:37:13Z",
    "title_canon_sha256": "5ad15d2efc17f0503474e2bde04e6da79c6e80d696b1892d0340d13f16d08854"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0207649",
    "kind": "arxiv",
    "version": 1
  }
}