Pith Number

pith:HN5XECIH

pith:2009:HN5XECIH6QFLKLQ3EMEWLOUBJB

not attested not anchored not stored refs pending

Strategies for spectroscopy on Extremely Large Telescope. III - Remapping switched fibre systems

C.L. Poppett, G.J. Murray, J.R. Allington-Smith

arxiv:0908.1323 v1 · 2009-08-10 · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HN5XECIH6QFLKLQ3EMEWLOUBJB}

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	2026-05-18T02:12:36.045946Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b7b720907f40ab52e1b230965ba81484d75c86ef814336aae66656b96f279b3

Aliases

arxiv: 0908.1323 · arxiv_version: 0908.1323v1 · doi: 10.48550/arxiv.0908.1323 · pith_short_12: HN5XECIH6QFL · pith_short_16: HN5XECIH6QFLKLQ3 · pith_short_8: HN5XECIH

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/HN5XECIH6QFLKLQ3EMEWLOUBJB \
  | 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: 3b7b720907f40ab52e1b230965ba81484d75c86ef814336aae66656b96f279b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0145c04c66d17a1a215dbd765460ac99857a2d85cdfe967aff55dae591b564e7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-08-10T13:34:03Z",
    "title_canon_sha256": "f7c451aa7533ea9cf0743c44b4a1aa045417189382bbdef8a5ccbc3097e7e118"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.1323",
    "kind": "arxiv",
    "version": 1
  }
}