Pith Number

pith:ERHE7XBZ

pith:1999:ERHE7XBZXYTMU2N6ROOHLK52FI

not attested not anchored not stored refs pending

Interstellar Dust in the WIRE to Planck Era

P. G. Martin

arxiv:astro-ph/9901337 v1 · 1999-01-25 · 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{ERHE7XBZXYTMU2N6ROOHLK52FI}

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	2026-05-18T01:07:36.649714Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

244e4fdc39be26ca69be8b9c75abba2a0e8cbfc8377060198418b3839f83f0f8

Aliases

arxiv: astro-ph/9901337 · arxiv_version: astro-ph/9901337v1 · doi: 10.48550/arxiv.astro-ph/9901337 · pith_short_12: ERHE7XBZXYTM · pith_short_16: ERHE7XBZXYTMU2N6 · pith_short_8: ERHE7XBZ

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/ERHE7XBZXYTMU2N6ROOHLK52FI \
  | 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: 244e4fdc39be26ca69be8b9c75abba2a0e8cbfc8377060198418b3839f83f0f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "97cb97a2b1c31d96c272f67c1904419d5ce39010a29e1daa8f20fa7695418080",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-01-25T00:41:47Z",
    "title_canon_sha256": "dca42d22bbd251153ce330a1eaa3dbb4a8516f979ad0651d59e0c1d8401c9ebb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9901337",
    "kind": "arxiv",
    "version": 1
  }
}