Pith Number

pith:YCRLBRS7

pith:1997:YCRLBRS7LEK4BSQRTXHDW3OB57

not attested not anchored not stored refs pending

Constraints on the density perturbation spectrum from primordial black holes

Andrew R Liddle, Anne M Green

arxiv:astro-ph/9704251 v1 · 1997-04-25 · 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{YCRLBRS7LEK4BSQRTXHDW3OB57}

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.

Cited by

2 papers in Pith

Constraints on Primordial Black Holes

The Gravitational Spectral Radio Forest: A Signature of Primordial Black Holes

Receipt and verification

First computed	2026-05-18T01:08:08.144467Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0a2b0c65f5915c0ca119dce3b6dc1efe3855f3eb593e92d191e29eb604f2881

Aliases

arxiv: astro-ph/9704251 · arxiv_version: astro-ph/9704251v1 · doi: 10.48550/arxiv.astro-ph/9704251 · pith_short_12: YCRLBRS7LEK4 · pith_short_16: YCRLBRS7LEK4BSQR · pith_short_8: YCRLBRS7

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/YCRLBRS7LEK4BSQRTXHDW3OB57 \
  | 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: c0a2b0c65f5915c0ca119dce3b6dc1efe3855f3eb593e92d191e29eb604f2881

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f509cc2ded37664f0491ac0ce1f95fce87fbf7d59cd733762ef9ece57fb56589",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-04-25T13:52:46Z",
    "title_canon_sha256": "1e1ee5c7ba1271b61c37fdb0f11d13752b01ee44b3b53f1fa678ad0f87f587ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9704251",
    "kind": "arxiv",
    "version": 1
  }
}