Pith Number

pith:7I3F2J7Q

pith:2017:7I3F2J7QDNHB5OAQUXGMLNUV3C

not attested not anchored not stored refs pending

Calibration of LOFAR data on the cloud

D. Lezzi, J. Garrido, J. Sabater, L. Verdes-Montenegro, P. N. Best, S. S\'anchez Exp\'osito

arxiv:1704.05064 v1 · 2017-04-17 · 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{7I3F2J7QDNHB5OAQUXGMLNUV3C}

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	2026-05-18T00:46:11.775700Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa365d27f01b4e1eb810a5ccc5b695d884daedbeb296369b881d72ce34c1ae14

Aliases

arxiv: 1704.05064 · arxiv_version: 1704.05064v1 · doi: 10.48550/arxiv.1704.05064 · pith_short_12: 7I3F2J7QDNHB · pith_short_16: 7I3F2J7QDNHB5OAQ · pith_short_8: 7I3F2J7Q

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/7I3F2J7QDNHB5OAQUXGMLNUV3C \
  | 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: fa365d27f01b4e1eb810a5ccc5b695d884daedbeb296369b881d72ce34c1ae14

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51e7424b86476be01784aad94fe65ef895aa014f04eacd5aefd766f0982eda23",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2017-04-17T18:00:00Z",
    "title_canon_sha256": "b324bfcd28e9946a87d22d42ba6dea5bd22b25ee3d1781fba137029beaf72971"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.05064",
    "kind": "arxiv",
    "version": 1
  }
}