Pith Number

pith:DRQU53L5

pith:2021:DRQU53L5NESFYSVC5G3LZ5DEPJ

not attested not anchored not stored refs pending

Persistent time lags in light curves of Sagittarius A*: evidence of outflow

Andreas Brunthaler, Casey Law, Christiaan Brinkerink, Heino Falcke

arxiv:2107.13402 v1 · 2021-07-28 · astro-ph.HE · 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{DRQU53L5NESFYSVC5G3LZ5DEPJ}

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

1 paper in Pith

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Receipt and verification

First computed	2026-07-05T03:01:29.836434Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c614eed7d69245c4aa2e9b6bcf4647a75ac923f8f60a7dfde643098232f9662

Aliases

arxiv: 2107.13402 · arxiv_version: 2107.13402v1 · doi: 10.48550/arxiv.2107.13402 · pith_short_12: DRQU53L5NESF · pith_short_16: DRQU53L5NESFYSVC · pith_short_8: DRQU53L5

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/DRQU53L5NESFYSVC5G3LZ5DEPJ \
  | 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: 1c614eed7d69245c4aa2e9b6bcf4647a75ac923f8f60a7dfde643098232f9662

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7dc7841f5a8d41e46564ae4f4a544719fa083b11772dba618404ca10d3317e65",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-07-28T14:46:15Z",
    "title_canon_sha256": "78c0493ebab38f1550950177cacd1a82b4e853e8a630629cf6adce515220a1b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.13402",
    "kind": "arxiv",
    "version": 1
  }
}