Pith Number

pith:VU2UGDSH

pith:2021:VU2UGDSH4U6JZG65HDTSGVXKNI

not attested not anchored not stored refs pending

Revealing the Physical Conditions around Sgr A* using Bayesian Inference -- I. Observations and Radiative Transfer

Farhad Yusef-Zadeh, Marc Royster, Mark Wardle, Serena Viti, Tomas A. James

arxiv:2105.00042 v2 · 2021-04-30 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VU2UGDSH4U6JZG65HDTSGVXKNI}

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	2026-07-05T03:02:15.436717Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad35430e47e53c9c9bdd38e72356ea6a3b9ed162f1c578b1887ae060ec20af6a

Aliases

arxiv: 2105.00042 · arxiv_version: 2105.00042v2 · doi: 10.48550/arxiv.2105.00042 · pith_short_12: VU2UGDSH4U6J · pith_short_16: VU2UGDSH4U6JZG65 · pith_short_8: VU2UGDSH

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/VU2UGDSH4U6JZG65HDTSGVXKNI \
  | 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: ad35430e47e53c9c9bdd38e72356ea6a3b9ed162f1c578b1887ae060ec20af6a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf9a2e12850c75149ba16f6901b9d102bcaa736477ba2416184e6e473b7f1b6d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-04-30T18:52:57Z",
    "title_canon_sha256": "7f1ad7cd0705c99dbe88735222b0416a1d9ce28c554a59c60fde6b47607f68ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.00042",
    "kind": "arxiv",
    "version": 2
  }
}