Pith Number

pith:PSHCZKMC

pith:2020:PSHCZKMC457P3RT6O6LSRRAQFU

not attested not anchored not stored refs pending

The Proper Motion of Sagittarius A*: III. The Case for a Supermassive Black Hole

A. Brunthaler, M. J. Reid

arxiv:2001.04386 v1 · 2020-01-13 · 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{PSHCZKMC457P3RT6O6LSRRAQFU}

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.

Cited by

2 papers in Pith

VAPOLA -- A multi-year, multi-band polarization survey of AGN and Sgr A* at mm wavelengths with ALMA I. Survey Overview and Science-Ready Archival Products

Boosted Dark Matter from Sagittarius A$^\star$

Receipt and verification

First computed	2026-07-05T00:51:38.159266Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c8e2ca982e77efdc67e779728c4102d2b0b34d0d9e48048b5a7d5ffb83e48d4

Aliases

arxiv: 2001.04386 · arxiv_version: 2001.04386v1 · doi: 10.48550/arxiv.2001.04386 · pith_short_12: PSHCZKMC457P · pith_short_16: PSHCZKMC457P3RT6 · pith_short_8: PSHCZKMC

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/PSHCZKMC457P3RT6O6LSRRAQFU \
  | 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: 7c8e2ca982e77efdc67e779728c4102d2b0b34d0d9e48048b5a7d5ffb83e48d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c828f12e438a0eba2e3658833e1bd13da356229f4041e58ffa70f80d5f28203",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-01-13T16:41:27Z",
    "title_canon_sha256": "7cc4ffbce5b3226ff055f61cef5b37327d4b77b75c9e8ac34a8eeaca1b636da3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.04386",
    "kind": "arxiv",
    "version": 1
  }
}