Pith Number
pith:BB4SQ76Q
pith:2009:BB4SQ76QG6IHCMY4AOQL5IQRFX
not attested
not anchored
not stored
refs pending
Measurement of the Crab nebula polarization at 90 GHz as a calibrator for CMB experiments
arxiv:0912.1751 v2 · 2009-12-09 · astro-ph.CO · astro-ph.GA
Add to your LaTeX paper
\usepackage{pith}
\pithnumber{BB4SQ76QG6IHCMY4AOQL5IQRFX}
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.
Cited by
Receipt and verification
| First computed | 2026-05-18T01:12:53.452244Z |
|---|---|
| Builder | pith-number-builder-2026-05-17-v1 |
| Signature | Pith Ed25519
(pith-v1-2026-05) · public key |
| Schema | pith-number/v1.0 |
Canonical hash
0879287fd0379071331c03a0bea2112de2dc389437a528ff6cc42bb70332dbcf
Aliases
· · · · ·Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/BB4SQ76QG6IHCMY4AOQL5IQRFX \
| 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: 0879287fd0379071331c03a0bea2112de2dc389437a528ff6cc42bb70332dbcf
Canonical record JSON
{
"metadata": {
"abstract_canon_sha256": "a0f075cb91065dcd8f145c210a1d79096f6bdcd65139305c9c9512ffd1f70412",
"cross_cats_sorted": [
"astro-ph.GA"
],
"license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
"primary_cat": "astro-ph.CO",
"submitted_at": "2009-12-09T14:05:36Z",
"title_canon_sha256": "cada173b3889e0e76d1b951677cd76fcb8d7635cef3870a54aa15eda8fad458f"
},
"schema_version": "1.0",
"source": {
"id": "0912.1751",
"kind": "arxiv",
"version": 2
}
}