Pith Number

pith:RSXDWHU3

pith:2018:RSXDWHU3GML32M3MTZHPFLEFC7

not attested not anchored not stored refs pending

The gravitational mass of Proxima Centauri measured with SPHERE from a microlensing event

A. Enia, A. Roux, A. Vigan, A. Zurlo, C. Perrot, C. Thalmann, D. Mesa, E. Giro, E. Lagadec, H. Avenhaus, J.-E. Schlieder, J. Girard, J.-M. Almenara, J. Milli, J. Ramos, K. Sahu, L. Gluck, M. Janson, M. Langlois, P. Kervella, R. Gratton, S. Desidera

arxiv:1807.01318 v1 · 2018-07-03 · astro-ph.SR · astro-ph.EP · 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{RSXDWHU3GML32M3MTZHPFLEFC7}

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	2026-05-18T00:09:58.421364Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8cae3b1e9b3317bd336c9e4ef2ac8517fec034c833d2b0439efb035ad4561d2b

Aliases

arxiv: 1807.01318 · arxiv_version: 1807.01318v1 · doi: 10.48550/arxiv.1807.01318 · pith_short_12: RSXDWHU3GML3 · pith_short_16: RSXDWHU3GML32M3M · pith_short_8: RSXDWHU3

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/RSXDWHU3GML32M3MTZHPFLEFC7 \
  | 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: 8cae3b1e9b3317bd336c9e4ef2ac8517fec034c833d2b0439efb035ad4561d2b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e575307774dcb32d14a8bcdd2da2b9063e270636c1b7d21a20db63f6371ecdf4",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-07-03T18:00:00Z",
    "title_canon_sha256": "c6ef94082b69a13fd2cd478edaa2f22df3a15cb14f1cca004f91641d63ba6c0a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.01318",
    "kind": "arxiv",
    "version": 1
  }
}