Pith Number

pith:PB3EPD2G

pith:2002:PB3EPD2GJSV53C33M6F6TAXYCB

not attested not anchored not stored refs pending

A Young Blue Tidal Stream in NGC 5128

2), (2) STScI, (3) RSAA, Australian National University), Eric W. Peng (1), Holland C. Ford (1, Kenneth C. Freeman (3), Richard L. White (2) ((1) Johns Hopkins University

arxiv:astro-ph/0208422 v1 · 2002-08-22 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PB3EPD2GJSV53C33M6F6TAXYCB}

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	2026-07-04T16:30:40.691926Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7876478f464cabdd8b7b678be982f8105e05f7aaec48906badc84df84c1918d5

Aliases

arxiv: astro-ph/0208422 · arxiv_version: astro-ph/0208422v1 · doi: 10.48550/arxiv.astro-ph/0208422 · pith_short_12: PB3EPD2GJSV5 · pith_short_16: PB3EPD2GJSV53C33 · pith_short_8: PB3EPD2G

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/PB3EPD2GJSV53C33M6F6TAXYCB \
  | 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: 7876478f464cabdd8b7b678be982f8105e05f7aaec48906badc84df84c1918d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d20fe76fecaeb070a0e8f00c4a4f724066e8986bc3150c329b3dfe911bb02e6c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-08-22T21:05:19Z",
    "title_canon_sha256": "842c8dedeee715e471c6fd67c5cff5195eef4ff3a9ffae242295b567343217c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0208422",
    "kind": "arxiv",
    "version": 1
  }
}