Pith Number
pith:NDSCHFQ7
pith:2011:NDSCHFQ7QRG2LRKYYVTLQ4VBHU
not attested
not anchored
not stored
refs pending
Iron and alpha-element Production in the First One Billion Years after the Big Bang
arxiv:1111.4843 v1 · 2011-11-21 · astro-ph.CO
Add to your LaTeX paper
\usepackage{pith}
\pithnumber{NDSCHFQ7QRG2LRKYYVTLQ4VBHU}
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 | 2026-05-18T01:59:27.577219Z |
|---|---|
| Builder | pith-number-builder-2026-05-17-v1 |
| Signature | Pith Ed25519
(pith-v1-2026-05) · public key |
| Schema | pith-number/v1.0 |
Canonical hash
68e423961f844da5c558c566b872a13d0526a23ea17f9bde554e1a9ef58f332d
Aliases
· · · · ·Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/NDSCHFQ7QRG2LRKYYVTLQ4VBHU \
| 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: 68e423961f844da5c558c566b872a13d0526a23ea17f9bde554e1a9ef58f332d
Canonical record JSON
{
"metadata": {
"abstract_canon_sha256": "354617144975e2e7a5cbdd1f12d31dd5e64ec30eb304485446ea4b3fdc541d67",
"cross_cats_sorted": [],
"license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
"primary_cat": "astro-ph.CO",
"submitted_at": "2011-11-21T12:07:55Z",
"title_canon_sha256": "e6c4ecb71fa80502d95f4f8be2938dd5ff4b6e16609f3d276c804ada5960f420"
},
"schema_version": "1.0",
"source": {
"id": "1111.4843",
"kind": "arxiv",
"version": 1
}
}