Pith Number

pith:7DXANC6W

pith:2019:7DXANC6WGYAQKKLQWEYTAZPH2J

not attested not anchored not stored refs pending

OPTICAM: A triple-camera optical system designed to explore the fastest timescales in Astronomy

A. Castro, B. Garc\'ia, C. Knigge, C. Tejada, D. Altamirano, D. Whiter, E. Colorado, G. Guisa, G. Sierra, J. Echevarr\'ia, J. Hern\'andez-Landa, J.V. Hern\'andez Santisteban, M. Middleton, N. Castro-Segura, P. Gandhi, R. Michel

arxiv:1908.05785 v1 · 2019-08-15 · 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{7DXANC6WGYAQKKLQWEYTAZPH2J}

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	2026-07-05T00:10:41.896957Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8ee068bd63601052970b1313065e7d26e70d4b09ddbeeae9c73bfb86d4ca94e

Aliases

arxiv: 1908.05785 · arxiv_version: 1908.05785v1 · doi: 10.48550/arxiv.1908.05785 · pith_short_12: 7DXANC6WGYAQ · pith_short_16: 7DXANC6WGYAQKKLQ · pith_short_8: 7DXANC6W

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/7DXANC6WGYAQKKLQWEYTAZPH2J \
  | 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: f8ee068bd63601052970b1313065e7d26e70d4b09ddbeeae9c73bfb86d4ca94e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65d6ec6e02fce2a879d8eb4f9e5b53a6b7d4754a4736a0ef0576653617375910",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-08-15T22:29:41Z",
    "title_canon_sha256": "c0354986661bd1c5918b3049297d4758cc423b97eaaa14f82bce782b6be0ca7b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.05785",
    "kind": "arxiv",
    "version": 1
  }
}