Pith Number

pith:3TIWT75Z

pith:2009:3TIWT75ZRVWOO2EAKJ5DPL7QD5

not attested not anchored not stored refs pending

The hyperfine transition of 3He+ as a probe of the intergalactic medium

Abraham Loeb, J.S. Bagla

arxiv:0905.1698 v1 · 2009-05-12 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3TIWT75ZRVWOO2EAKJ5DPL7QD5}

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

1 paper in Pith

Advancing extragalactic spectral line studies with the Square Kilometre Array Observatory

Receipt and verification

First computed	2026-07-04T15:42:24.385708Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dcd169ffb98d6ce76880527a37aff01f619c2cfdd63cacd7c82b81f40454bca2

Aliases

arxiv: 0905.1698 · arxiv_version: 0905.1698v1 · doi: 10.48550/arxiv.0905.1698 · pith_short_12: 3TIWT75ZRVWO · pith_short_16: 3TIWT75ZRVWOO2EA · pith_short_8: 3TIWT75Z

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/3TIWT75ZRVWOO2EAKJ5DPL7QD5 \
  | 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: dcd169ffb98d6ce76880527a37aff01f619c2cfdd63cacd7c82b81f40454bca2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78e75f3f201963ba45d4f84f3e2fae18abc26f1d8311a25ba85bd3641d6fc1c1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-05-12T15:22:27Z",
    "title_canon_sha256": "27ceb87fb6eb3caf622a7d9bd2de853910ed078cf36fd15f6c4f285e5eb1770d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.1698",
    "kind": "arxiv",
    "version": 1
  }
}