Pith Number

pith:RY7VCSAW

pith:1997:RY7VCSAW7XFI55JYWND3EO4KV7

not attested not anchored not stored refs pending

Constraints on a Primordial Magnetic Field

John D. Barrow, Joseph Silk, Pedro G. Ferreira

arxiv:astro-ph/9701063 v1 · 1997-01-13 · 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{RY7VCSAW7XFI55JYWND3EO4KV7}

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

Bianchi-I Cosmology with Radiation in Asymptotically Safe Gravity

Primordial magnetic fields in the light of upcoming post-EoR Lyman-$\alpha$ and 21-cm observations

Receipt and verification

First computed	2026-05-18T01:07:40.303466Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e3f514816fdca8ef538b347b23b8aafc0b53008590d48d392e9e7e3cebbc3c7

Aliases

arxiv: astro-ph/9701063 · arxiv_version: astro-ph/9701063v1 · doi: 10.48550/arxiv.astro-ph/9701063 · pith_short_12: RY7VCSAW7XFI · pith_short_16: RY7VCSAW7XFI55JY · pith_short_8: RY7VCSAW

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/RY7VCSAW7XFI55JYWND3EO4KV7 \
  | 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: 8e3f514816fdca8ef538b347b23b8aafc0b53008590d48d392e9e7e3cebbc3c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22d89e720872130523f691e67a22b11400736018ec63f629b0ef2f114b603962",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-01-13T19:33:23Z",
    "title_canon_sha256": "593081830a630175cb853b8dd621243cf880c476fe33b090f9c95ccd2c9887d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9701063",
    "kind": "arxiv",
    "version": 1
  }
}