Pith Number

pith:B7XWTFXU

pith:1998:B7XWTFXULT4IWKCIP3N2632TTP

not attested not anchored not stored refs pending

High Resolution Data on the Cloverleaf in the UV and in CO(7-6)

3), D. Alloin(1), J.-P. Kneib (4) ((1) CNRS, SAp CE Saclay; (2) IAP; (3) Obs. Paris DEMIRM; (4) OMP-Toulouse), Y. Mellier (2

arxiv:astro-ph/9802016 v1 · 1998-02-02 · 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{B7XWTFXULT4IWKCIP3N2632TTP}

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	2026-05-18T01:07:37.811337Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0fef6996f45cf88b28487edbaf6f539be1ed3bce7e37e0196306215d68730e9a

Aliases

arxiv: astro-ph/9802016 · arxiv_version: astro-ph/9802016v1 · doi: 10.48550/arxiv.astro-ph/9802016 · pith_short_12: B7XWTFXULT4I · pith_short_16: B7XWTFXULT4IWKCI · pith_short_8: B7XWTFXU

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/B7XWTFXULT4IWKCIP3N2632TTP \
  | 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: 0fef6996f45cf88b28487edbaf6f539be1ed3bce7e37e0196306215d68730e9a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a466afd0a7714872ef96b3e5620cf47688d0c085da62e275768eb72abdcb5a5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-02-02T16:04:20Z",
    "title_canon_sha256": "198d29208213fb14b87f6adb0ca4995223a4c30f39140fac68e987f89bec5335"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9802016",
    "kind": "arxiv",
    "version": 1
  }
}