Pith Number

pith:Z4UGS22E

pith:2022:Z4UGS22EHBU3NIPF4RPR3GZL67

not attested not anchored not stored refs pending

Towards measuring supermassive black hole masses with interferometric observations of the dust continuum

A. Drescher, A. Eckart, A. Sternberg, B. M. Peterson, C. Straubmeier, D. Gratadour, D. J. D. Santos, D. Lutz, D. Rouan, E. Sturm, F. Eisenhauer, F. Millour, F. Widmann, G. Bourdarot, G. Perrin, GRAVITY Collaboration: A. Amorim, H. Netzer, J. Dexter, J. Shangguan, J. Woillez, K. Perraut, K. R. W. Tristram, L. J. Tacconi, M. A. Prieto, M. Fabricius, M. Kishimoto, N. M. F\"orster Schreiber, O. Pfuhl, P. J. V. Garcia, P. O. Petrucci, P. T. de Zeeuw, R. Davies, R. Genzel, S. Gillessen, S. H\"onig, S. Lacour, T. Ott, T. Paumard, T. Shimizu, W. Brandner, Y. Cao, Y. Cl\'enet

arxiv:2209.14410 v1 · 2022-09-28 · astro-ph.GA · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z4UGS22EHBU3NIPF4RPR3GZL67}

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	2026-07-05T05:26:51.193356Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf28696b443869b6a1e5e45f1d9b2bf7e35913462a65225daa9ca8907544deea

Aliases

arxiv: 2209.14410 · arxiv_version: 2209.14410v1 · doi: 10.48550/arxiv.2209.14410 · pith_short_12: Z4UGS22EHBU3 · pith_short_16: Z4UGS22EHBU3NIPF · pith_short_8: Z4UGS22E

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/Z4UGS22EHBU3NIPF4RPR3GZL67 \
  | 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: cf28696b443869b6a1e5e45f1d9b2bf7e35913462a65225daa9ca8907544deea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3a13ab0f31b78a252cac87f02216752795a04b93b7563960c524d9883678ef1",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-09-28T20:46:32Z",
    "title_canon_sha256": "0f12198ec5b6bcefe8acd0239ce1ca1cc1b636091b14e75a0e41d571157ac8bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2209.14410",
    "kind": "arxiv",
    "version": 1
  }
}