Pith Number

pith:TSSDL27D

pith:1997:TSSDL27D55QGC22EVYKCPNRXIY

not attested not anchored not stored refs pending

Projection effects in cluster catalogues

2), C. S. Frenk (1), D), M. P. van Haarlem (1, NL; (3) MPIA, S. D. M. White (3) ((1) Univ. of Durham, UK; (2) NFRA

arxiv:astro-ph/9701103 v1 · 1997-01-16 · 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{TSSDL27D55QGC22EVYKCPNRXIY}

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	2026-05-18T01:40:18.347428Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ca435ebe3ef60616b44ae1427b6374602651fa4130d2b206bf280c331884d99

Aliases

arxiv: astro-ph/9701103 · arxiv_version: astro-ph/9701103v1 · doi: 10.48550/arxiv.astro-ph/9701103 · pith_short_12: TSSDL27D55QG · pith_short_16: TSSDL27D55QGC22E · pith_short_8: TSSDL27D

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/TSSDL27D55QGC22EVYKCPNRXIY \
  | 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: 9ca435ebe3ef60616b44ae1427b6374602651fa4130d2b206bf280c331884d99

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb40a8959d0a4a8ea6435c184c363a313c019ff4f8afdbadb70f1317f45b192d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-01-16T12:24:08Z",
    "title_canon_sha256": "cb52778125c8e19d35dc1bf3f1197a24dce86a2e08ae571b65a9e40f00e17491"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9701103",
    "kind": "arxiv",
    "version": 1
  }
}