Pith Number
pith:YHDGACF4
pith:2009:YHDGACF43UFY6CKOLJ5P4MFQPB
not attested
not anchored
not stored
refs pending
A metallicity-spin temperature relation in damped Lyman-$\alpha$ systems
arxiv:0909.2459 v1 · 2009-09-14 · astro-ph.CO
Add to your LaTeX paper
\usepackage{pith}
\pithnumber{YHDGACF43UFY6CKOLJ5P4MFQPB}
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
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claim
4
Citations
5
Replications
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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 | 2026-05-18T02:34:30.252200Z |
|---|---|
| Builder | pith-number-builder-2026-05-17-v1 |
| Signature | Pith Ed25519
(pith-v1-2026-05) · public key |
| Schema | pith-number/v1.0 |
Canonical hash
c1c66008bcdd0b8f094e5a7afe30b0786695908af130ac708b92cfbae6956d24
Aliases
· · · · ·Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/YHDGACF43UFY6CKOLJ5P4MFQPB \
| 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: c1c66008bcdd0b8f094e5a7afe30b0786695908af130ac708b92cfbae6956d24
Canonical record JSON
{
"metadata": {
"abstract_canon_sha256": "62351abd5886ab269794e85ffb015b9429d5d93f019c9cd22e60f3c82fc1d126",
"cross_cats_sorted": [],
"license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
"primary_cat": "astro-ph.CO",
"submitted_at": "2009-09-14T01:47:20Z",
"title_canon_sha256": "da2601c40bde54536068e855821ac21415142842cc9325b0a6ae377838c52fae"
},
"schema_version": "1.0",
"source": {
"id": "0909.2459",
"kind": "arxiv",
"version": 1
}
}