Pith Number

pith:Z2W3BOJG

pith:2020:Z2W3BOJG7RQQ4EWMI3IET3FLMU

not attested not anchored not stored refs pending

The Koala: A Fast Blue Optical Transient with Luminous Radio Emission from a Starburst Dwarf Galaxy at $z=0.27$

(10) Racah Institute, (11) CIERA, 12), (12) Adler, (13) LBNL, 14), (14) Weizmann), (2) LJMU, (3) NCRA, (4) DIRAC Institute, (5) U. Minnesota, (6) COO, (7) Ioffe Institute, 8), (8) eScience Institute, (9) IPAC, A. A. Miller (11, A. Horesh (10), Anna Y. Q. Ho (1), A. Ridnaia (7), B. Rusholme (9), C. Fremling (1), D. A. Perley (2) S. R. Kulkarni (1), D. D. Frederiks (7), D. Hale (6), D. L. Shupe (9), D. S. Svinkin (7) ((1) Caltech, D. Z. J. Dong (1), E. C. Bellm (4), F. Masci (9), G. Helou (9), I. Andreoni (1), K. B. Burdge (1), K. De (1), M. Coughlin (5), M. Feeney (6), M. Graham (1), M. Porter (6), M. T. Soumagnac (13, P. Chandra (3), R. Dekany (6), R. R. Laher (9), V. Z. Golkhou (4

arxiv:2003.01222 v4 · 2020-03-02 · 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{Z2W3BOJG7RQQ4EWMI3IET3FLMU}

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

Multi-wavelength Constraints on the Transient EP250905a

Receipt and verification

First computed	2026-07-05T01:07:27.912720Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ceadb0b926fc610e12cc46d049ecab6536d5f35915eca246a8602c52e364c3c2

Aliases

arxiv: 2003.01222 · arxiv_version: 2003.01222v4 · doi: 10.48550/arxiv.2003.01222 · pith_short_12: Z2W3BOJG7RQQ · pith_short_16: Z2W3BOJG7RQQ4EWM · pith_short_8: Z2W3BOJG

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/Z2W3BOJG7RQQ4EWMI3IET3FLMU \
  | 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: ceadb0b926fc610e12cc46d049ecab6536d5f35915eca246a8602c52e364c3c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8fcb0013b10f3114fad40b49e7359a3e88976513310d79de30250b4885cafa0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-03-02T22:19:22Z",
    "title_canon_sha256": "e2c067fe24c2bb13680a4e17a7b136c75367a91e1c61de0cb40f4b9ad6649851"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.01222",
    "kind": "arxiv",
    "version": 4
  }
}