Pith Number

pith:UDBP5I5C

pith:2017:UDBP5I5CGHCU6DTGOYEFESZQ7H

not attested not anchored not stored refs pending

Mapping the aberrations of a wide-field spectrograph using a photonic comb

Christopher Betters, Gayandhi De Silva, Janez Kos, John O'Byrne, Joss Bland-Hawthorn, Rob Patterson, Sergio Leon-Saval (SIfA, U. Sydney)

arxiv:1704.08775 v1 · 2017-04-27 · 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{UDBP5I5CGHCU6DTGOYEFESZQ7H}

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	2026-05-18T00:38:53.257682Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0c2fea3a231c54f0e667608524b30f9d90efe1c512d91b43be3af0abb6e4a2f

Aliases

arxiv: 1704.08775 · arxiv_version: 1704.08775v1 · doi: 10.48550/arxiv.1704.08775 · pith_short_12: UDBP5I5CGHCU · pith_short_16: UDBP5I5CGHCU6DTG · pith_short_8: UDBP5I5C

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/UDBP5I5CGHCU6DTGOYEFESZQ7H \
  | 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: a0c2fea3a231c54f0e667608524b30f9d90efe1c512d91b43be3af0abb6e4a2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "050a9ae2aa712614b9f7a184ce6da4a98f6f1b642e1223f48ab48978a3f85fd0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2017-04-27T23:56:34Z",
    "title_canon_sha256": "69361a319953a7393513d987879c1e65e76abd4354b54ef93fb9f75ee47c6728"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.08775",
    "kind": "arxiv",
    "version": 1
  }
}