Pith Number

pith:IAKCZ2GP

pith:2019:IAKCZ2GP7M53EUH2IYCBEDJFLO

not attested not anchored not stored refs pending

Maintaining Capabilities in CCD Production for the Astronomy Community

David Schlegel, Kyle Dawson, Stephen Holland

arxiv:1907.06798 v1 · 2019-07-16 · 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{IAKCZ2GP7M53EUH2IYCBEDJFLO}

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	2026-05-17T23:40:29.103691Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

40142ce8cffb3bb250fa4604120d255ba1ae7806f1239c4c60e674e2253b6b3f

Aliases

arxiv: 1907.06798 · arxiv_version: 1907.06798v1 · doi: 10.48550/arxiv.1907.06798 · pith_short_12: IAKCZ2GP7M53 · pith_short_16: IAKCZ2GP7M53EUH2 · pith_short_8: IAKCZ2GP

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/IAKCZ2GP7M53EUH2IYCBEDJFLO \
  | 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: 40142ce8cffb3bb250fa4604120d255ba1ae7806f1239c4c60e674e2253b6b3f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16c08a086062dd1dc6b445687a0b6a451de2cb00100d8bc0e9b359bf58b2f340",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-07-16T00:22:52Z",
    "title_canon_sha256": "5a1b08b22efd440c8c39d584090c9205fd694c8616c179ee545ee4c2082c1fe1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.06798",
    "kind": "arxiv",
    "version": 1
  }
}