Pith. sign in
Pith Number

pith:XOJZETFX

pith:1999:XOJZETFXICVIQJNQ2OXFDV7CWT
not attested not anchored not stored refs pending

Black Holes and Galaxy Evolution

David Merritt

arxiv:astro-ph/9910546 v1 · 1999-10-29 · astro-ph

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{XOJZETFXICVIQJNQ2OXFDV7CWT}

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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.

Cited by

1 paper in Pith

Receipt and verification
First computed 2026-07-04T14:17:16.455194Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

bb93924cb740aa8825b0d3ae51d7e2b4d6b56e15faa7888c91823b134a6acc10

Aliases

arxiv: astro-ph/9910546 · arxiv_version: astro-ph/9910546v1 · doi: 10.48550/arxiv.astro-ph/9910546 · pith_short_12: XOJZETFXICVI · pith_short_16: XOJZETFXICVIQJNQ · pith_short_8: XOJZETFX
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/XOJZETFXICVIQJNQ2OXFDV7CWT \
  | 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: bb93924cb740aa8825b0d3ae51d7e2b4d6b56e15faa7888c91823b134a6acc10
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "c1801653ea9a230244056b1021b7ca79cda67aeba74f5166140edf1729cc2cb9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-10-29T18:39:29Z",
    "title_canon_sha256": "6af81a7d3946de947bdbb6b2e7916aa34a93211e272924de90f435d05d40ac16"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9910546",
    "kind": "arxiv",
    "version": 1
  }
}