Pith Number

pith:VMLJPNM7

pith:1999:VMLJPNM75RKV3TC67L6W4XO3OS

not attested not anchored not stored refs pending

HST observations of the very young SMC ``blob'' N88A

(2) Observatoire de Marseille, (3) STECF, (4) Astrophysikalisches Institut Potsdam), DEMIRM, European Southern Observatory, H. Zinnecker (4) ((1) Observatoire de Paris, L. Deharveng (2), M. Heydari-Malayeri (1), M.R. Rosa (3), V. Charmandaris (1)

arxiv:astro-ph/9904308 v1 · 1999-04-22 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VMLJPNM75RKV3TC67L6W4XO3OS}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T04:17:13.987433Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab1697b59fec555dcc5efafd6e5ddb7497266d2ed4d895dfb2e05fb2429cd5f4

Aliases

arxiv: astro-ph/9904308 · arxiv_version: astro-ph/9904308v1 · doi: 10.48550/arxiv.astro-ph/9904308 · pith_short_12: VMLJPNM75RKV · pith_short_16: VMLJPNM75RKV3TC6 · pith_short_8: VMLJPNM7

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/VMLJPNM75RKV3TC67L6W4XO3OS \
  | 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: ab1697b59fec555dcc5efafd6e5ddb7497266d2ed4d895dfb2e05fb2429cd5f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40559915bcec59af4640b30f123b0479c35eefc8aef031c7d972a65f0eefa7b2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-04-22T16:30:59Z",
    "title_canon_sha256": "44a468e13334e6da1923a52d6ca7b006810b1397239b0eaf805ea68848d70721"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9904308",
    "kind": "arxiv",
    "version": 1
  }
}