Pith Number

pith:SUTDCXPN

pith:2009:SUTDCXPNPL636BWNKVI2JBCR4L

not attested not anchored not stored refs pending

Urea destabilizes RNA by forming stacking interactions and multiple hydrogen bonds with nucleic acid bases

Alexander D. MacKerell Jr, Changbong Hyeon, D. Thirumalai, U. Deva Priyakumar

arxiv:0912.1175 v1 · 2009-12-07 · q-bio.BM · cond-mat.soft · physics.bio-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{SUTDCXPNPL636BWNKVI2JBCR4L}

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.

Receipt and verification

First computed	2026-05-18T00:52:24.411736Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9526315ded7afdbf06cd5551a48451e2fa4667bcfeb3728d1f6e70ad77fef1b8

Aliases

arxiv: 0912.1175 · arxiv_version: 0912.1175v1 · doi: 10.48550/arxiv.0912.1175 · pith_short_12: SUTDCXPNPL63 · pith_short_16: SUTDCXPNPL636BWN · pith_short_8: SUTDCXPN

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/SUTDCXPNPL636BWNKVI2JBCR4L \
  | 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: 9526315ded7afdbf06cd5551a48451e2fa4667bcfeb3728d1f6e70ad77fef1b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f44c357dcc5a7a67606553bd38c4ac63e8c574c68c2ae66f91fa9b3f25b9842f",
    "cross_cats_sorted": [
      "cond-mat.soft",
      "physics.bio-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.BM",
    "submitted_at": "2009-12-07T07:45:04Z",
    "title_canon_sha256": "4985976b8e7eedff88c86d4f7bb8d6d57e162848bccad5ffc2768d1256ffd601"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.1175",
    "kind": "arxiv",
    "version": 1
  }
}