Pith Number

pith:UBCVKIUT

pith:2010:UBCVKIUTK3JP5ZT2GGRIC46EF4

not attested not anchored not stored refs pending

A High-Metallicity Host Environment for the Long-Duration GRB 020819

Andrew S. Fruchter, Emily M. Levesque, John F. Graham, Lisa J. Kewley

arxiv:1001.0970 v2 · 2010-01-06 · 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{UBCVKIUTK3JP5ZT2GGRIC46EF4}

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	2026-05-18T02:10:04.343905Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a04555229356d2fee67a31a28173c42f0bb2996863ce0b7e8b6c3166efcfbc6b

Aliases

arxiv: 1001.0970 · arxiv_version: 1001.0970v2 · doi: 10.48550/arxiv.1001.0970 · pith_short_12: UBCVKIUTK3JP · pith_short_16: UBCVKIUTK3JP5ZT2 · pith_short_8: UBCVKIUT

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/UBCVKIUTK3JP5ZT2GGRIC46EF4 \
  | 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: a04555229356d2fee67a31a28173c42f0bb2996863ce0b7e8b6c3166efcfbc6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "663dbd6d358495b6388decd01533da5094552348992ad917b4ffd5fc85733223",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2010-01-06T21:00:05Z",
    "title_canon_sha256": "64466116ee9fa727d7698aa7cc6622e9149f00a8bdbd8de0e3dd6ee67d230c17"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.0970",
    "kind": "arxiv",
    "version": 2
  }
}