Pith Number

pith:VRBLGREZ

pith:2023:VRBLGREZ6ZNV2GKRV2RTTLT44K

not attested not anchored not stored refs pending

Updated radial velocities and new constraints on the nature of the unseen source in NGC1850 BH1

Angela Kochoska, Christopher Usher, Hugues Sana, Jerome A. Orosz, Julia Bodensteiner, Mark Gieles, Nate Bastian, Sara Saracino, Sebastian Kamann, Tomer Shenar

arxiv:2303.07369 v1 · 2023-03-13 · astro-ph.GA · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VRBLGREZ6ZNV2GKRV2RTTLT44K}

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	2026-07-05T05:55:53.562550Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac42b34499f65b5d1951aea339ae7ce28c9776707cca7638faf2ace3a58692b5

Aliases

arxiv: 2303.07369 · arxiv_version: 2303.07369v1 · doi: 10.48550/arxiv.2303.07369 · pith_short_12: VRBLGREZ6ZNV · pith_short_16: VRBLGREZ6ZNV2GKR · pith_short_8: VRBLGREZ

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/VRBLGREZ6ZNV2GKRV2RTTLT44K \
  | 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: ac42b34499f65b5d1951aea339ae7ce28c9776707cca7638faf2ace3a58692b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8fb271340f2661d1be95770169a9230200779469e7c48f1cd0fb77005e6adfa",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2023-03-13T18:00:03Z",
    "title_canon_sha256": "9b6d0ac91b2723da733f1df5e9e135b1d8b18ca39e9e7a54744967a9e990bd46"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.07369",
    "kind": "arxiv",
    "version": 1
  }
}