Pith Number

pith:KYT2F7SU

pith:2019:KYT2F7SU2GU34Z3AMUF3NGT6VJ

not attested not anchored not stored refs pending

A radio parallax to the black hole X-ray binary MAXI J1820+070

A. Bahramian, A. J. Tetarenko, A. T. Deller, C. L. Sarazin, D. Altamirano, D. Maitra, D. Russell, E. Koerding, G. R. Sivakoff, J. C. A. Miller-Jones, P. Atri, P. G. Jonker, R. Fender, R. M. Plotkin, R. Soria, S. Markoff, S. Migliari, T. Belloni, T. J. Maccarone, T. Russell, V. Tudose

arxiv:1912.04525 v2 · 2019-12-10 · 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{KYT2F7SU2GU34Z3AMUF3NGT6VJ}

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	2026-07-05T00:41:50.828607Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5627a2fe54d1a9be6760650bb69a7eaa6ff479d669852bd9507ad447bf34ec86

Aliases

arxiv: 1912.04525 · arxiv_version: 1912.04525v2 · doi: 10.48550/arxiv.1912.04525 · pith_short_12: KYT2F7SU2GU3 · pith_short_16: KYT2F7SU2GU34Z3A · pith_short_8: KYT2F7SU

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/KYT2F7SU2GU34Z3AMUF3NGT6VJ \
  | 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: 5627a2fe54d1a9be6760650bb69a7eaa6ff479d669852bd9507ad447bf34ec86

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df51320eb33d78617e9087a141f49ac44e74d532ddd113747fed5ddd28e8221b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-12-10T06:21:19Z",
    "title_canon_sha256": "b200000b9afe59b462beed02d34345c2f988a28c3f76de60aa436cb31fbae33f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.04525",
    "kind": "arxiv",
    "version": 2
  }
}