Pith Number

pith:UA7X2O2S

pith:2021:UA7X2O2SGAJLUEOMNUPHWKQXQ6

not attested not anchored not stored refs pending

J01020100-7122208: an accreted evolved blue straggler that wasn't ejected from a supermassive black hole

D. Bourbert, D. Brito-Silva, J. L. Prieto, K. Hawkins, P. Jofr\'e, S. E. Koposov

arxiv:2111.08821 v1 · 2021-11-16 · astro-ph.GA · 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{UA7X2O2SGAJLUEOMNUPHWKQXQ6}

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	2026-07-05T07:02:24.400819Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a03f7d3b523012ba11cc6d1e7b2a17879cc5287f297a900982f2fdd319f8211e

Aliases

arxiv: 2111.08821 · arxiv_version: 2111.08821v1 · doi: 10.48550/arxiv.2111.08821 · pith_short_12: UA7X2O2SGAJL · pith_short_16: UA7X2O2SGAJLUEOM · pith_short_8: UA7X2O2S

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/UA7X2O2SGAJLUEOMNUPHWKQXQ6 \
  | 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: a03f7d3b523012ba11cc6d1e7b2a17879cc5287f297a900982f2fdd319f8211e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44a60adfd864d18ec23fef903486678eb06417bd0c127be7a321d87af769dd25",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-11-16T22:57:06Z",
    "title_canon_sha256": "a36f3c07c3f57cd58226cfe98284e6e692dc5ea14b36ab08635548e9988e8cd2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.08821",
    "kind": "arxiv",
    "version": 1
  }
}