Pith Number

pith:A5HFXMC6

pith:2017:A5HFXMC6V574O657ITE2DLWQOM

not attested not anchored not stored refs pending

Demonstration of an efficient, photonic-based astronomical spectrograph on an 8-m telescope

B. Norris, C. Betters, C. Schwab, D. Doughty, F. Martinache, J. Lawrence, J. Lozi, N. Cvetojevic, N. Jovanovic, N. Takato, O. Guyon, P. Tuthill, S. Gross, Y. Minowa

arxiv:1707.01847 v2 · 2017-07-06 · astro-ph.IM · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A5HFXMC6V574O657ITE2DLWQOM}

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	2026-05-18T00:36:38.293555Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

074e5bb05eaf7fc77bbf44c9a1aed07315f2d1dda22901c66fab33399996970a

Aliases

arxiv: 1707.01847 · arxiv_version: 1707.01847v2 · doi: 10.48550/arxiv.1707.01847 · pith_short_12: A5HFXMC6V574 · pith_short_16: A5HFXMC6V574O657 · pith_short_8: A5HFXMC6

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/A5HFXMC6V574O657ITE2DLWQOM \
  | 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: 074e5bb05eaf7fc77bbf44c9a1aed07315f2d1dda22901c66fab33399996970a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eeee45a6968f4a5d7748195b8f022acecd769d3a4441df271d9f96c9286bdce6",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2017-07-06T16:05:39Z",
    "title_canon_sha256": "43a451932110591341a7c0b65013004383bdf8c7c7c15764a7cd5470ec2717d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.01847",
    "kind": "arxiv",
    "version": 2
  }
}