Pith Number

pith:E5FESAYL

pith:2023:E5FESAYLXBSY63WUK7KIVUWHH4

not attested not anchored not stored refs pending

Late-time Hubble Space Telescope Observations of AT 2018cow. II. Evolution of a UV bright Underlying Source 2--4 Yr Post-discovery

Anthony L. Piro, C\'esar Rojas-Bravo, Charles D. Kilpatrick, Maria R. Drout, M. R. Magee, Ryan J. Foley, Yuyang Chen

arxiv:2303.03501 v2 · 2023-03-06 · astro-ph.HE · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E5FESAYLXBSY63WUK7KIVUWHH4}

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	2026-07-05T06:55:22.460129Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

274a49030bb8658f6ed457d48ad2c73f033c1c2ced3ac0c742930018fa9baf2c

Aliases

arxiv: 2303.03501 · arxiv_version: 2303.03501v2 · doi: 10.48550/arxiv.2303.03501 · pith_short_12: E5FESAYLXBSY · pith_short_16: E5FESAYLXBSY63WU · pith_short_8: E5FESAYL

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/E5FESAYLXBSY63WUK7KIVUWHH4 \
  | 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: 274a49030bb8658f6ed457d48ad2c73f033c1c2ced3ac0c742930018fa9baf2c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a005aeb445babefabfc2af08fc704b1f475165e4ba0dead6c4aa1c25ec14973c",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2023-03-06T21:21:06Z",
    "title_canon_sha256": "2cb7f54942f1b6f21ad47b110c3d4c667cd22720c114265e58d26298444c43d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.03501",
    "kind": "arxiv",
    "version": 2
  }
}