Pith Number

pith:ASIY5L3F

pith:2021:ASIY5L3FIXXV63IPG4YJCLFBRN

not attested not anchored not stored refs pending

High-precision astrometric studies in direct imaging with SPHERE

A. Boccaletti, A.-L. Maire, A. Vigan, A. Zurlo, E. L. Rickman, G. Chauvin, J. H. Girard, J.-U. Pott, M. A. Kenworthy, M. Langlois, M. Nowak, M. R. Meyer, P. Delorme, P. Kervella, R. Gratton, S. Lacour, S. P. Quanz, T. Henning

arxiv:2103.13700 v1 · 2021-03-25 · 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{ASIY5L3FIXXV63IPG4YJCLFBRN}

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	2026-07-05T02:51:21.230743Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

04918eaf6545ef5f6d0f3730912ca18b7cb80b0b1aa2c651773ed58d35c400fc

Aliases

arxiv: 2103.13700 · arxiv_version: 2103.13700v1 · doi: 10.48550/arxiv.2103.13700 · pith_short_12: ASIY5L3FIXXV · pith_short_16: ASIY5L3FIXXV63IP · pith_short_8: ASIY5L3F

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/ASIY5L3FIXXV63IPG4YJCLFBRN \
  | 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: 04918eaf6545ef5f6d0f3730912ca18b7cb80b0b1aa2c651773ed58d35c400fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4537a2ae7273d2fee5736a0de4ccc17de69f699d477e32a0a7e72f365fd7e7d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2021-03-25T09:23:02Z",
    "title_canon_sha256": "f0cd2ad5f63082a54a15cf4083335ca0ce7895bbaf903c140fd3ef3eb68e08d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.13700",
    "kind": "arxiv",
    "version": 1
  }
}