Pith Number

pith:XZOMZCDC

pith:1997:XZOMZCDC7NTL52D34S5IHG2ATU

not attested not anchored not stored refs pending

An X-Ray Dip in the X-Ray Transient 4U 1630-47

I. Lapshov, J.A. Tomsick, P. Kaaret (Columbia University)

arxiv:astro-ph/9709214 v1 · 1997-09-22 · 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{XZOMZCDC7NTL52D34S5IHG2ATU}

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	2026-07-04T16:03:15.368300Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be5ccc8862fb66bee87be4ba839b409d161e821ecc253013a7b2d321b6aeff41

Aliases

arxiv: astro-ph/9709214 · arxiv_version: astro-ph/9709214v1 · doi: 10.48550/arxiv.astro-ph/9709214 · pith_short_12: XZOMZCDC7NTL · pith_short_16: XZOMZCDC7NTL52D3 · pith_short_8: XZOMZCDC

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/XZOMZCDC7NTL52D34S5IHG2ATU \
  | 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: be5ccc8862fb66bee87be4ba839b409d161e821ecc253013a7b2d321b6aeff41

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "607d65bd3b33d45ee0eefc154e1241efdf1c6d13370b7e09c849076345bb7103",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-09-22T18:10:03Z",
    "title_canon_sha256": "86fee84efb72147cbef190b49d8d2353890554f3a5f21d4d898cc46fab9a71b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9709214",
    "kind": "arxiv",
    "version": 1
  }
}