Pith Number

pith:MTIX6TXV

pith:2001:MTIX6TXVGTLQGUH4YXYLGZDFKO

not attested not anchored not stored refs pending

An Efficient Algorithm for Positioning Tiles in the Sloan Digital Sky Survey

F. Miller Maley, I. Zehavi, J. Loveday, M. R. Blanton, N. Young, R. H. Lupton

arxiv:astro-ph/0105535 v1 · 2001-05-30 · 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{MTIX6TXVGTLQGUH4YXYLGZDFKO}

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	2026-05-18T04:37:11.916785Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64d17f4ef534d70350fcc5f0b3646553810591a002ddb07e9e296c460384174d

Aliases

arxiv: astro-ph/0105535 · arxiv_version: astro-ph/0105535v1 · doi: 10.48550/arxiv.astro-ph/0105535 · pith_short_12: MTIX6TXVGTLQ · pith_short_16: MTIX6TXVGTLQGUH4 · pith_short_8: MTIX6TXV

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/MTIX6TXVGTLQGUH4YXYLGZDFKO \
  | 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: 64d17f4ef534d70350fcc5f0b3646553810591a002ddb07e9e296c460384174d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38a0f8a0b9c41f7ba037e19cb42fb2446d2d7c9aac236b1301394f177aa1904c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-05-30T17:58:02Z",
    "title_canon_sha256": "a8467d2dad5b077a1e9eefe34b41b1db6b30f5febcc03a6f113cbfb9d483142e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0105535",
    "kind": "arxiv",
    "version": 1
  }
}